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Revenue - Schedule of Contract Liabilities from Contracts with Clients (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
Contract With Customer Asset And Liability [Abstract]
Deferred revenue	$ 1,168	$ 761
Client deposits	$ 600	$ 661

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
Current assets:
Cash and cash equivalents	$ 76,124	$ 62,522
Accounts receivable, net	69,612	75,628
Prepaid expenses and other assets	5,234	5,228
Total current assets	150,970	143,378
Property and equipment, net	5,682	5,410
Operating lease right-of-use assets	11,151	0
Goodwill	82,544	82,544
Other intangible assets, net	31,244	35,118
Deferred tax assets, noncurrent	52,495	52,149
Other assets, noncurrent	5,318	6,012
Total assets	339,404	324,611
Current liabilities:
Accounts payable	34,298	37,093
Accrued liabilities	38,279	36,878
Deferred revenue	1,168	761
Other liabilities	8,967	8,967
Total current liabilities	82,712	83,699
Operating lease liabilities, noncurrent	10,769	0
Other liabilities, noncurrent	12,052	18,083
Total liabilities	105,533	101,782
Commitments and contingencies (See Note 11)	0	0
Stockholders' equity:
Common stock: $0.001 par value; 100,000,000 shares authorized; 51,636,757 and 50,518,460 shares issued and outstanding at December 31, 2019 and June 30, 2019	52	50
Additional paid-in capital	298,080	289,768
Accumulated other comprehensive loss	(319)	(366)
Accumulated deficit	(63,942)	(66,623)
Total stockholders' equity	233,871	222,829
Total liabilities and stockholders' equity	$ 339,404	$ 324,611

Condensed Consolidated Statements of Operations (Parenthetical) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Cost of revenue [Member]
Stock-based compensation	$ 2,347	$ 2,001	$ 4,837	$ 3,540
Product development [Member]
Stock-based compensation	518	427	1,002	828
Sales and marketing [Member]
Stock-based compensation	558	429	979	713
General and administrative [Member]
Stock-based compensation	$ 1,277	$ 1,022	$ 2,530	$ 1,909

Leases - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2019
Operating Leased Assets [Line Items]
Rent expense	$ 1.0	$ 2.0
Future principal contractual obligations for operating lease commitments undiscounted lease liability excess amount			$ 0.7
Maximum [Member]
Operating Leased Assets [Line Items]
Lessee, operating lease, renewal term			5 years

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities
Net income	$ 2,681	$ 58,123
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,666	4,019
Provision for sales returns and doubtful accounts receivable	150	425
Stock-based compensation	9,348	6,990
Non-cash lease expense	166	0
Deferred income taxes	(311)	(50,039)
Other adjustments, net	269	370
Changes in assets and liabilities:
Accounts receivable	5,866	7,655
Prepaid expenses and other assets	628	220
Accounts payable	(2,610)	2,138
Accrued liabilities	(2,781)	(7,659)
Deferred revenue	407	177
Other liabilities, noncurrent	0	460
Net cash provided by operating activities	19,479	22,879
Cash Flows from Investing Activities
Capital expenditures	(948)	(652)
Internal software development costs	(1,114)	(1,194)
Business acquisitions, net	0	(22,156)
Other investing activities	25	170
Net cash used in investing activities	(2,037)	(23,832)
Cash Flows from Financing Activities
Proceeds from exercise of common stock options	3,153	5,206
Payment of withholding taxes related to release of restricted stock, net of share settlement	(4,186)	(7,418)
Post-closing payments and contingent consideration related to acquisitions	(2,866)	0
Net cash used in financing activities	(3,899)	(2,212)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	59	37
Net increase in cash, cash equivalents and restricted cash	13,602	(3,128)
Cash, cash equivalents and restricted cash at beginning of period	62,536	65,588
Cash, cash equivalents and restricted cash at end of period	76,138	62,460
Reconciliation of cash, cash equivalents, and restricted cash to the condensed consolidated balance sheets
Cash and cash equivalents	76,124	62,447
Restricted cash included in other assets, noncurrent	$ 14	$ 13
Restricted Cash, Noncurrent, Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent	us-gaap:OtherAssetsNoncurrent
Cash, cash equivalents and restricted cash at end of period	$ 76,138	$ 62,460
Supplemental Disclosure of Cash Flow Information
Cash paid for income taxes	59	129
Accrued post-closing payments related to AmOne Corp. acquisition (see Note 7)	0	7,514
Supplemental Disclosure of Non-cash Investing and Financing Activities
Purchases of property and equipment included in accrued liabilities	$ 98	$ 0

Goodwill and Intangible Assets, Net - Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 204,175	$ 204,210
Accumulated Amortization	(172,931)	(169,092)
Net Carrying Amount	31,244	35,118
Customer/publisher/advertiser relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	70,296	70,300
Accumulated Amortization	(43,327)	(40,663)
Net Carrying Amount	26,969	29,637
Content [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	60,942	60,964
Accumulated Amortization	(60,928)	(60,940)
Net Carrying Amount	14	24
Website/trade/domain names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	33,538	33,546
Accumulated Amortization	(30,703)	(30,218)
Net Carrying Amount	2,835	3,328
Acquired technology and others [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	39,399	39,400
Accumulated Amortization	(37,973)	(37,271)
Net Carrying Amount	$ 1,426	$ 2,129

Acquisitions

6 Months Ended

Dec. 31, 2019

Business Combinations [Abstract]

Acquisitions

7. Acquisitions

Acquisition of AmOne Corp.

On October 1, 2018, the Company completed the purchase of AmOne, an online performance marketing company in the financial services client vertical, to broaden its publisher and customer relationships. In exchange for all outstanding shares of AmOne, the Company paid $23.0 million in cash upon closing (including $2.7 million cash for net assets acquired subject to post-closing adjustments) and will make $8.0 million in post-closing payments, payable in equal semi-annual installments over a two year period, with the first installment being paid six months following the date of closing.

Acquisition of CloudControlMedia, LLC

On April 15, 2019, the Company completed the purchase of CCM, a marketing services company in the education client vertical, to broaden its customer relationships. In exchange for all the outstanding shares of CCM, the Company paid $8.3 million in cash upon closing (including $0.8 million cash for net assets acquired subject to post-closing adjustments) and will make a series of future payments following the acquisition date. The $7.5 million post-closing payments are payable in cash in equal semi-annual installments over a four year period, with the first installment paid six months following the date of closing. The contingent consideration is payable for five years following the date of closing and is calculated every June 30 and December 31 for the preceding six months.

Acquisition of MyBankTracker.com, LLC

On May 14, 2019, the Company completed the purchase of MBT, a leading personal finance website to broaden its customer relationships. In exchange for all the outstanding shares of MBT, the Company paid $4.5 million in cash upon closing (including $1.5 million cash for net assets acquired) and will make a series of future payments following the acquisition date. The $4.0 million post-closing payments are payable in cash in equal semi-annual installments over a two year period, with the first installment payable twelve months following the date of closing. The contingent consideration is calculated semi-annually for the preceding six months beginning on December 31, 2019 and ending on June 30, 2023.

The following table summarizes the consideration for each acquisition as of the acquisition dates (in thousands):

	AmOne		CCM			MBT
Cash	$	23,032	$	8,281		$	4,511
Post-closing adjustments for net assets acquired		138		(72	)		—
Post-closing payments, net of imputed interest ⁽¹⁾		7,514		6,671			3,708
Contingent consideration		—		3,553			1,505
Total	$	30,684	$	18,433		$	9,724

⁽¹⁾	The post-closing payment is net of imputed interest of $486 thousand for AmOne, $829 thousand for CCM and $292 thousand for MBT.

The acquisitions were accounted for as business combinations and the results of operations of the acquired businesses have been included in the Company’s results of operations as of the acquisition date. The Company expensed all transaction costs in the period in which they were incurred. The Company allocated the purchase price to identifiable assets acquired based on their estimated fair values. The fair value of the consideration transferred and the assets acquired and liabilities assumed was determined by the Company and in doing so management engaged a third-party valuation specialist to assist with the measurement of the fair value of identifiable intangible assets and obligations related to post-closing payments and contingent consideration. The estimated fair value of the identifiable assets acquired and liabilities assumed in the relevant acquisition was based on management’s best estimates. The fair value of the publisher and advertiser relationships was determined using the multi-period excess earnings income approach or cost approach. The fair value of trade names was determined using the relief-from-royalty method. The fair value of acquired technology was determined using the cost approach. The excess of the purchase price over the aggregate fair value of the identifiable assets acquired was recorded as goodwill and is primarily attributable to synergies the Company expects to achieve related to the acquisition. The goodwill is deductible for tax purposes. The fair value of the contingent consideration was determined using the real options technique. See Note 5, Fair Value Measurements, for additional information regarding the valuation of the contingent consideration.

The following table summarizes the allocation of the purchase price and the estimated useful lives of the identifiable assets acquired as of the date of the acquisition (in thousands):

	AmOne		Estimated Useful Life	CCM		Estimated Useful Life	MBT		Estimated Useful Life
Customer/publisher/advertiser relationships	$	21,300	7 years	$	4,500	3-4 years	$	3,400	3-12 years
Website/trade/domain names		900	15 years		300	5 years		1,100	15 years
Acquired technology and others		500	3 years		—	n/a		—	n/a
Net assets		2,838	n/a		2,071	n/a		1,671	n/a
Goodwill		5,146	Indefinite		11,562	Indefinite		3,553	Indefinite
Total	$	30,684		$	18,433		$	9,724

The Company is still finalizing the allocation of the purchase price of CCM and MBT to the individual assets acquired. Accordingly, these preliminary estimates are subject to change during the measurement period, which is the period subsequent to the acquisition date during which the acquirer may adjust the provisional amounts recognized for a business combination, not to exceed one year from the acquisition date. The final purchase price allocation, which may include changes in the allocations within intangible assets and between intangible assets and goodwill, as well as changes in the estimated useful lives of the intangible assets, will be determined when the Company has completed the detailed review of underlying inputs and assumptions used in its preliminary purchase price allocation.

The unaudited pro forma financial information in the table below summarizes the combined results of operations for the Company and the acquired businesses as though these acquisitions occurred as of the beginning of fiscal year 2018. The unaudited pro-forma financial information is presented for illustrative purposes only and do not necessarily reflect what the combined company’s results of operations would have been had the acquisitions occurred as of the beginning of fiscal year 2018, nor is it necessarily indicative of the future results of operations of the combined Company.


	Three Months Ended		Six Months Ended
	December 31, 2018		December 31, 2018
	(In thousands)		(In thousands)
Net revenue	$	104,096	$	223,455
Net income		52,846		59,379

The pro forma financial information for the three and six months ended December 31, 2018 includes the elimination of $20 thousand and $192 thousand of nonrecurring acquisition costs incurred by the Company that are directly related to the acquisition.

Leases- Components of Lease Expense (Detail) - USD ($)
$ in Thousands

3 Months Ended

6 Months Ended

Dec. 31, 2019

Lease Cost [Abstract]

Operating lease expense

$ 999

$ 2,003

Short-term lease expense

268

556

Variable lease expense

^[1]

154

298

Total lease expense

$ 1,421

$ 2,857

[1]	Variable lease expense for the three and six months ended December 31, 2019 primarily included common area maintenance charges.

Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 31, 2019
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The condensed consolidated financial statements include the accounts of the Company and its subsidiaries. Intercompany balances and transactions have been eliminated in consolidation.
Unaudited Interim Financial Information	Unaudited Interim Financial Information The accompanying condensed consolidated financial statements and the notes to the condensed consolidated financial statements as of December 31, 2019 and for the three and six months ended December 31, 2019 and 2018 are unaudited. These unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Accordingly, these interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2019, as filed with the SEC on August 29, 2019. The condensed consolidated balance sheet at June 30, 2019 included herein was derived from the audited financial statements as of that date, but does not include all disclosures, including notes, required by GAAP. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements and, in the opinion of management, include all adjustments (consisting only of normal recurring adjustments) necessary for the fair presentation of the Company’s condensed consolidated balance sheet at December 31, 2019, its condensed consolidated statements of stockholders’ equity, operations and comprehensive income for the three and six months ended December 31, 2019 and 2018 and condensed consolidated statements of cash flows for the six months ended December 31, 2019 and 2018. The results of operations for the three and six months ended December 31, 2019 are not necessarily indicative of the results to be expected for the fiscal year ending June 30, 2020, or any other future period.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenue and expenses during the period. On an ongoing basis, management evaluates these estimates, judgments and assumptions, including those related to revenue recognition, stock-based compensation, goodwill, long-lived assets, contingencies, and income taxes. The Company bases these estimates on historical and anticipated results and trends and on various other assumptions that the Company believes are reasonable under the circumstances, including assumptions as to future events. These estimates form the basis for making judgments about the carrying values of assets and liabilities and recorded revenue and expenses that are not readily apparent from other sources. Actual results could differ from those estimates, and such differences could affect the results of operations reported in future periods.
Accounting Policies	Accounting Policies The significant accounting policies are described in Note 2, Summary of Significant Accounting Policies, to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2019. There have been no material changes to our significant accounting policies as of and for the six months ended December 31, 2019, except for the accounting policy for leases that was updated as a result of adopting Accounting Standards Update 2016-02—Leases (Topic 842). For more information, refer to “Recently Adopted Accounting Standards” and Note 10, Leases.
Leases	Leases At the commencement date of a lease, the Company recognizes lease liabilities which represent its obligation to make lease payments, and right-of-use (“ROU”) assets which represent its right to use the underlying asset during the lease term. The lease liability is measured at the present value of lease payments over the lease term. As the Company’s leases typically do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available at the lease commencement date. The ROU asset is measured at cost, which includes the initial measurement of the lease liability and initial direct costs incurred by the Company and excludes lease incentives. Lease liabilities are recorded in accrued liabilities and operating lease liabilities, noncurrent. ROU assets are recorded in operating lease ROU assets. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Operating lease expense is recognized on a straight-line basis over the lease term. Lease agreements that contain both lease and non-lease components are generally accounted for separately. The Company does not recognize lease liabilities and ROU assets for short-term leases with terms of twelve months or less.
Concentrations of Credit Risk	Concentrations of Credit Risk The Company had one client that accounted for 18% of net revenue for both the three and six months ended December 31, 2019 and 21% and 23% of net revenue for the three and six months ended December 31, 2018. That same client accounted for 9% and 11% of net accounts receivable as of December 31, 2019 and June 30, 2019. No other clients accounted for 10% or more of net revenue for the three and six months ended December 31, 2019 or 2018 or 10% or more of net accounts receivable as of December 31, 2019 or June 30, 2019.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The Company’s financial instruments consist principally of cash equivalents, accounts receivable, accounts payable, post-closing payments and contingent consideration related to acquisitions in fiscal year 2019. The recorded values of the Company’s accounts receivable and accounts payable approximate their current fair values due to the relatively short-term nature of these accounts.
Cash and Cash Equivalents	Cash and Cash Equivalents All highly liquid investments with maturities of three months or less at the date of purchase are classified as cash equivalents on the Company’s condensed consolidated balance sheets. Cash Equivalents The valuation technique used to measure the fair value of money market funds included using quoted prices in active markets for identical assets and are classified as Level 1 within the fair value hierarchy.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Accounting Pronouncements Adopted Leases. In February 2016, the Financial Accounting Standards Board (the “FASB”) issued new accounting standard update on leases, which requires the recognition of lease liabilities and ROU assets on the condensed consolidated balance sheet, while recognizing expenses on the condensed consolidated income statements in a manner similar to legacy guidance. The Company adopted the new standard as of July 1, 2019 using the modified transition approach to all leases existing at the date of initial application and not restating comparative periods. The primary impact of adopting the new standard was the recognition of lease liabilities of $16.7 million and ROU assets of $13.1 million for operating leases in the first quarter of fiscal year 2020, which included reclassifying deferred rent as a component of the ROU assets. The Company's adoption of the new standard had no material impact on its consolidated condensed statement of operations and cash flows. The Company elected certain transition practical expedients, which allows the Company not to reassess (i) whether any expired or existing contracts as of the adoption date are or contain a lease, (ii) lease classification for any expired or existing leases as of the adoption date and (iii) initial direct costs for any existing leases as of the adoption date. In addition, the Company has elected not to recognize lease liabilities and ROU assets for short-term leases with terms of twelve months or less. See Note 10, Leases, for further information regarding the impact of adoption of the standard on the Company’s condensed consolidated financial statements. Goodwill Impairment. In January 2017, the FASB issued a new accounting standard update to simplify the measurement of goodwill by eliminating the Step 2 impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. The new guidance requires an entity to compare the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. The new guidance becomes effective for goodwill impairment tests in fiscal years beginning after December 31, 2019, with early adoption permitted. The Company early adopted the new standard effective on July 1, 2019. The adoption of this standard did not have a material impact on the Company’s condensed consolidated financial statements. Accounting Pronouncements Not Yet Adopted Fair Value Measurements. In August 2018, the FASB issued a new accounting standard which eliminates, adds and modifies certain disclosure requirements for fair value measurement. The new guidance is effective for the Company in the first quarter of fiscal year 2021. Implementation on a prospective or retrospective basis varies by specific disclosure requirement. Early adoption is permitted. The standard also allows for early adoption of any removed or modified disclosures upon issuance of the new guidance while delaying adoption of the additional disclosures until their effective date. The Company is currently assessing the impact the new guidance will have on the financial statement disclosures. There were no other significant updates to the recently issued accounting standards other than as disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2019. Although there are several other new accounting pronouncements issued or proposed by the FASB, the Company does not believe any of these accounting pronouncements has had or will have a material impact on its consolidated financial position or operating results.
Net Income per Share	Basic net income per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period. Diluted net income per share is computed by using the weighted-average number of shares of common stock outstanding, including potential dilutive shares of common stock assuming the dilutive effect of outstanding stock options and restricted stock units using the treasury stock method.
Stock Repurchases	The Company’s accounting policy upon the retirement of treasury stock is to deduct its par value from common stock and reduce additional paid-in capital by the amount recorded in additional paid-in capital when the stock was originally issued.
Segment Information	Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources and in assessing performance. The Company’s chief operating decision maker, its chief executive officer, reviews financial information presented on a consolidated basis and no expense or operating income is evaluated at a segment level. Given the consolidated level of review by the Company’s chief executive officer, the Company operates as one reportable segment.

Acquisitions - Schedule of Consideration (Parenthetical) (Detail) - USD ($) $ in Thousands	May 14, 2019	Apr. 15, 2019	Oct. 01, 2018
AmOne Corp [Member]
Business Acquisition [Line Items]
Post-closing payments, imputed interest			$ 486
CloudControlMedia, LLC [Member]
Business Acquisition [Line Items]
Post-closing payments, imputed interest		$ 829
MyBankTracker.com, LLC [Member]
Business Acquisition [Line Items]
Post-closing payments, imputed interest	$ 292

Subsequent Events

6 Months Ended

Dec. 31, 2019

Subsequent Events [Abstract]

Subsequent Events

15. Subsequent Events

On January 8, 2020, the Company reached a settlement with the California Franchise Tax Board for the taxable years 2006 to 2011 and expects to receive a tax refund of $3.1 million.

Goodwill and Intangible Assets, Net - Amortization Expense (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
Finite Lived Intangible Assets Future Amortization Expense [Abstract]
2020 (remaining six months)	$ 3,853
2021	6,414
2022	5,297
2023	4,698
2024	3,855
Thereafter	7,127
Net Carrying Amount	$ 31,244	$ 35,118

Leases - Maturities of Operating Lease Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jul. 01, 2019	Jun. 30, 2019
Lease Cost [Abstract]
2020 (remaining six months)	$ 1,911
2021	4,563
2022	4,273
2023	3,834
2024	1,810
Thereafter	183
Total minimum lease payments	16,574
Less imputed interest	(1,726)
Present value of net minimum lease payments	14,848	$ 16,700
Operating lease liabilities:
Current	4,079
Noncurrent	10,769		$ 0
Present value of net minimum lease payments	$ 14,848	$ 16,700

Leases - Future Annual Minimum Lease Payments under Noncancelable Operating Leases (Detail) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
2020	$ 3,529
2021	4,263
2022	4,234
2023	3,801
2024	1,312
Thereafter	176
Total	$ 17,315

Acquisitions - Summary of Unaudited Pro Forma Financial Information Combined Results of Operations (Detail) - AmOne Corp [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2018	Dec. 31, 2018
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items]
Net revenue	$ 104,096	$ 223,455
Net income	$ 52,846	$ 59,379

Segment Information - Net Revenue and Long-Lived Assets by Geographic Area (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Net revenue:
Total net revenue	$ 118,101	$ 104,096	$ 244,715	$ 216,965
Property and equipment, net:
Total property and equipment, net	5,682		5,682		$ 5,410
Other intangible assets, net:
Total other intangible assets, net	31,244		31,244		35,118
United States [Member]
Net revenue:
Total net revenue	114,230	102,247	238,417	213,035
Property and equipment, net:
Total property and equipment, net	5,467		5,467		5,149
Other intangible assets, net:
Total other intangible assets, net	31,203		31,203		35,044
International [Member]
Net revenue:
Total net revenue	3,871	$ 1,849	6,298	$ 3,930
Property and equipment, net:
Total property and equipment, net	215		215		261
Other intangible assets, net:
Total other intangible assets, net	$ 41		$ 41		$ 74

Leases

6 Months Ended

Dec. 31, 2019

Leases [Abstract]

Leases

10. Leases

The Company has operating leases primarily for its office facilities. The leases expire at various dates through fiscal year 2026, some of which include options to renew, with renewal terms of up to 5 years. The Company does not include any renewal options in the lease terms for calculating lease liability, as the renewal options allow the Company to maintain operational flexibility and the Company is not reasonably certain that it will exercise these renewal options at the time of the lease commencement.

The components of lease expense were as follows (in thousands):

	Three Months Ended		Six Months Ended
	December 31, 2019		December 31, 2019
Operating lease expense	$	999	$	2,003
Short-term lease expense		268		556
Variable lease expense ⁽¹⁾		154		298
Total lease expense	$	1,421	$	2,857

⁽¹⁾	Variable lease expense for the three and six months ended December 31, 2019 primarily included common area maintenance charges.

Rent expense was $1.0 million and $2.0 million during the three and six months ended December 31, 2018, which was recognized using the straight-line method over the term of a lease in accordance with legacy guidance.

Supplemental information related to operating leases was as follows (in thousands, except lease term and discount rate):

	Six Months Ended
	December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used for operating leases	$	1,846

Lease liabilities arising from obtaining right-of-use assets
Operating leases	$	43

Weighted average remaining lease term - operating leases	3.7 years
Weighted average discount rate - operating leases		4.5	%

The implicit rate within each lease is not readily determinable and therefore the Company uses its incremental borrowing rate at the lease commencement date to determine the present value of the lease payments. The determination of the incremental borrowing rate requires judgement. The Company determined its incremental borrowing rate for each lease using indicative bank borrowing rates, adjusted for various factors including level of collateralization, term and currency to align with the terms of a lease.

Maturities of operating lease liabilities as of December 31, 2019 were as follows (in thousands):

Fiscal Year Ending June 30,	Amount
2020 (remaining six months)	$	1,911
2021		4,563
2022		4,273
2023		3,834
2024		1,810
Thereafter		183
Total minimum lease payments	$	16,574
Less imputed interest		(1,726	)
Present value of net minimum lease payments	$	14,848
Operating lease liabilities:
Current		4,079
Noncurrent		10,769
Total	$	14,848

Total future principal contractual obligations for operating lease commitments exceeded the undiscounted lease liability by $0.7 million as of December 31, 2019, primarily because the lease liability excluded short-term lease payments (due to the adoption of the short-term lease exemption).

Future annual minimum lease payments under noncancellable operating leases as of June 30, 2019 were as follows (in thousands):

	Operating
Fiscal Year Ending June 30,	Leases
2020	$	3,529
2021		4,263
2022		4,234
2023		3,801
2024		1,312
Thereafter		176
Total	$	17,315

Goodwill and Intangible Assets, Net - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	$ 82,544,000		$ 82,544,000		$ 82,544,000
Impairments to goodwill			0
Amortization of intangible assets	$ 1,900,000	$ 1,500,000	$ 3,900,000	$ 2,200,000

Fair Value Measurements

6 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurements

5. Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the reporting date. The Company estimates and categorizes the fair value of its financial instruments by applying the following hierarchy:

Level 1 — Valuations based on quoted prices in active markets for identical assets or liabilities that the Company has the ability to directly access.

Level 2 — Valuations based on quoted prices for similar assets or liabilities; valuations for interest-bearing securities based on non-daily quoted prices in active markets; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable data for substantially the full term of the assets or liabilities.

Level 3 — Valuations based on inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

The following table presents the fair value of the Company’s financial instruments (in thousands):

	December 31, 2019								June 30, 2019
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	11,323	$	—	$	—	$	11,323	$	11,206	$	—	$	—	$	11,206
Total	$	11,323	$	—	$	—	$	11,323	$	11,206	$	—	$	—	$	11,206
Liabilities:
Post-closing payments related to acquisitions	$	—	$	13,711	$	—	$	13,711	$	—	$	16,259	$	—	$	16,259
Contingent consideration related to acquisitions		—		—		5,008		5,008		—		—		5,058		5,058
Total	$	—	$	13,711	$	5,008	$	18,719	$	—	$	16,259	$	5,058	$	21,317

Reported as:
Cash and cash equivalents							$	11,323							$	11,206
Other Liabilities:
Current							$	8,967							$	8,967
Noncurrent								9,752								12,350
Total							$	18,719							$	21,317

There were no transfers between Level 1 and Level 2 during the periods presented.

Cash Equivalents

The valuation technique used to measure the fair value of money market funds included using quoted prices in active markets for identical assets and are classified as Level 1 within the fair value hierarchy.

Post-Closing Payments Related to Acquisitions

The post-closing payments are future payments related to the Company’s acquisitions of AmOne Corp (“AmOne”), CloudControlMedia, LLC (“CCM”) and MyBankTracker.com, LLC (“MBT”) in fiscal year 2019. As the fair value of the Company’s post-closing payments was determined based on installments stipulated in the terms of the acquisition agreements and discount rates observable in the market, the post-closing payments are classified as Level 2 within the fair value hierarchy. See Note 7, Acquisitions, for further details related to the acquisitions.

Contingent Consideration Related to Acquisitions

The contingent consideration consists of estimated future payments related to the Company’s acquisition of CCM and MBT. The fair value of the contingent consideration is determined using the real options technique which incorporates various estimates, including projected net revenue and gross margin that is subject to the contingent consideration payment, a volatility factor applied to net revenue and gross margin based on year-on-year growth in net revenue and gross margin of comparable companies and discount rates. As certain of these inputs are not observable in the market, the contingent consideration is classified as a Level 3 instrument. See Note 7, Acquisitions, for further details related to the acquisitions.

The following table represents the change in the contingent consideration (in thousands):

	Three Months Ended		Six Months Ended
	December 31, 2019		December 31, 2019
Balance at the beginning of period	$	5,008	$	5,058
Changes in fair value during the period		—		—
Payments made during the period		—		(50	)
Balance at the end of period	$	5,008	$	5,008

Stock Benefit Plans

6 Months Ended

Dec. 31, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Benefit Plans

13. Stock Benefit Plans

Stock Incentive Plans

The Company may grant nonstatutory stock options (“NQSOs”), restricted stock, restricted stock units (“RSUs”), stock appreciation rights, performance-based stock awards, and other forms of equity compensation, as well as performance cash awards, under its 2010 Equity Incentive Plan (the “2010 Incentive Plan”). The Company may grant NQSOs and RSUs to non-employee directors under the 2010 Non-Employee Directors’ Stock Award Plan (the “Directors’ Plan”). Prior to fiscal year 2016, the Company granted RSUs with a service condition (“service-based RSUs”). In fiscal year 2016, the Company also began granting to employees RSUs with a market condition (“market-based RSUs”) that requires the Company’s stock price achieve a specified price above the grant date stock price before it can be eligible for service vesting conditions. In fiscal year 2019, the Company began granting to employees RSUs with a performance condition (“performance-based RSUs”) that vest variably subject to the achievement of certain revenue growth and adjusted EBITDA targets (“performance targets”). The Company evaluates the portion of the awards that are probable to vest quarterly until the performance targets are met. To date, the Company has issued ISOs, NQSOs, service-based RSUs, market-based RSUs and performance-based RSUs under its stock incentive plans.

As of December 31, 2019, 23,390,511 shares were reserved and 16,079,083 shares were available for issuance under the 2010 Incentive Plan; 4,333,939 shares were reserved and 2,176,642 shares were available for issuance under the Directors’ Plan.

Stock-Based Compensation

The Company estimates the fair value of stock options at the date of grant using the Black-Scholes option-pricing model. Options are granted with an exercise price equal to the closing price of the Company’s common stock on the date of grant.

The weighted-average Black-Scholes model assumptions for the three and six months ended December 31, 2019 and 2018 were as follows:

	Three Months Ended						Six Months Ended
	December 31,						December 31,
	2019			2018			2019			2018
Expected term (in years)		3.9			4.0			4.4		4.2
Expected volatility		58	%		56	%		57	%		55	%
Expected dividend yield		—			—			—			—
Risk-free interest rate		1.6	%		2.9	%		1.5	%		2.9	%
Grant date fair value	$	6.97		$	6.56		$	5.36		$	6.56

The Company estimates the fair value of service-based RSUs and performance-based RSUs based on the closing price of the Company’s common stock on the grant date. As some of the components that comprise the performance targets have not been fully established, a grant date as defined by ASC 718 has not been determined. The Company will re-measure the compensation expense associated with the performance-based RSUs at each reporting date based on the closing price of the Company’s common stock at each reporting date until the grant date has been established. Compensation expense is amortized net of estimated forfeitures on a straight-line basis over the requisite service period of the stock-based compensation awards.

Prepaid Expenses and Other Assets

6 Months Ended

Dec. 31, 2019

Prepaid Expense And Other Assets [Abstract]

Prepaid Expenses and Other Assets

6. Prepaid Expenses and Other Assets

In fiscal year 2016, the Company entered into a 10-year partnership agreement with a large online customer acquisition marketing company focused on the U.S. insurance industry to be its exclusive click monetization partner for the majority of its insurance categories. The agreement included a one-time upfront cash payment of $10.0 million. The payment is being amortized on a straight-line basis over the life of the contract. As of December 31, 2019, the Company has recorded $1.0 million within prepaid expenses and other assets and $4.7 million within other assets, noncurrent on the Company’s condensed consolidated balance sheet. As of June 30, 2019, the Company had recorded $1.0 million within prepaid expenses and other assets and $5.3 million within other assets, noncurrent on the Company’s condensed consolidated balance sheet. Amortization expense was $0.3 million and $0.6 million for both the three and six months ended December 31, 2019 and 2018.

Leases - Supplemental Information Related to Operating Leases (Detail) $ in Thousands	6 Months Ended
	Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used for operating leases	$ 1,846
Lease liabilities arising from obtaining right-of-use assets
Operating lease liabilities arising from obtaining right-of-use assets	$ 43
Weighted average remaining lease term - operating leases	3 years 8 months 12 days
Weighted average discount rate - operating leases	4.50%

Fair Value Measurements - Additional Information (Detail) - USD ($)	Dec. 31, 2019	Jun. 30, 2019
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract]
Fair value, assets, level 1 to level 2 transfers, amount	$ 0	$ 0
Fair value, assets, level 2 to level 1 transfers, amount	0	0
Fair value, liabilities, level 1 to level 2 transfers, amount	0	0
Fair value, liabilities, level 2 to level 1 transfers, amount	$ 0	$ 0

Revenue - Schedule of Disaggregation of Net Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Disaggregation Of Revenue [Line Items]
Net revenue	$ 118,101	$ 104,096	$ 244,715	$ 216,965
Financial Services [Member]
Disaggregation Of Revenue [Line Items]
Net revenue	89,097	74,410	181,976	151,776
Education [Member]
Disaggregation Of Revenue [Line Items]
Net revenue	14,532	16,214	31,930	38,653
Other [Member]
Disaggregation Of Revenue [Line Items]
Net revenue	$ 14,472	$ 13,472	$ 30,809	$ 26,536

Prepaid Expenses and Other Assets - Additional Information (Detail) - Partnership Agreement [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2016	Jun. 30, 2019
Prepaid expenses and other assets [Line Items]
Partnership agreement					10 years
Upfront cash payment					$ 10.0
Prepaid expenses and other assets	$ 1.0		$ 1.0			$ 1.0
Other assets, noncurrent	4.7		4.7			$ 5.3
Amortization expense	$ 0.3	$ 0.3	$ 0.6	$ 0.6

Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Dec. 31, 2019	Feb. 05, 2020
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Trading Symbol	QNST
Entity Registrant Name	QuinStreet, Inc.
Entity Central Index Key	0001117297
Current Fiscal Year End Date	--06-30
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity File Number	001-34628
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		51,697,404
Entity Tax Identification Number	77-0512121
Entity Address, Address Line One	950 Tower Lane
Entity Address, Address Line Two	6th Floor
Entity Address, City or Town	Foster City
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94404
City Area Code	650
Local Phone Number	578-7700
Entity Interactive Data Current	Yes
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	DE
Security Exchange Name	NASDAQ
Title of 12(b) Security	Common Stock, par value $0.001 per share

Stock Benefit Plans (Tables)

6 Months Ended

Dec. 31, 2019

Stock options [Member]

Schedule of Weighted Average Assumptions

The weighted-average Black-Scholes model assumptions for the three and six months ended December 31, 2019 and 2018 were as follows:

	Three Months Ended						Six Months Ended
	December 31,						December 31,
	2019			2018			2019			2018
Expected term (in years)		3.9			4.0			4.4		4.2
Expected volatility		58	%		56	%		57	%		55	%
Expected dividend yield		—			—			—			—
Risk-free interest rate		1.6	%		2.9	%		1.5	%		2.9	%
Grant date fair value	$	6.97		$	6.56		$	5.36		$	6.56

Stockholders' Equity

6 Months Ended

Dec. 31, 2019

Equity [Abstract]

Stockholders' Equity

12. Stockholders’ Equity

Stock Repurchases

In July 2017, the Board of Directors authorized a stock repurchase program to repurchase up to 905,000 outstanding shares of its common stock. In October 2017, the Board of Directors increased the number of outstanding shares that may be repurchased to 966,000 shares. There were no repurchases made during fiscal year 2019 and the three and six months ended December 31, 2019. As of December 31, 2019, the number of shares that remains available for repurchase is 903,636 shares.

The Company’s accounting policy upon the retirement of treasury stock is to deduct its par value from common stock and reduce additional paid-in capital by the amount recorded in additional paid-in capital when the stock was originally issued.

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Dec. 31, 2019	Jun. 30, 2019
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	51,636,757	50,518,460
Common stock, shares outstanding	51,636,757	50,518,460

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]
Beginning Balance at Jun. 30, 2018	$ 148,326	$ 48	$ 277,761	$ (380)	$ (129,103)
Beginning Balance, Shares at Jun. 30, 2018		48,146,384
Issuance of common stock upon exercise of stock options	5,124	$ 1	5,123	0	0
Issuance of common stock upon exercise of stock options, Shares		701,386
Release of restricted stock, net of share settlement	0	$ 1	(1)	0	0
Release of restricted stock, net of share settlement, Shares		923,663
Stock-based compensation expense	7,028	$ 0	7,028	0	0
Withholding taxes related to release of restricted stock, net of share settlement	(7,418)	0	(7,418)	0	0
Net income	58,123	0	0	0	58,123
Other comprehensive income (loss)	23	0	0	23	0
Ending Balance at Dec. 31, 2018	211,206	$ 50	282,493	(357)	(70,980)
Ending Balance, Shares at Dec. 31, 2018		49,771,433
Beginning Balance at Sep. 30, 2018	153,025	$ 49	277,084	(302)	(123,806)
Beginning Balance, Shares at Sep. 30, 2018		49,145,985
Issuance of common stock upon exercise of stock options	3,072	$ 1	3,071	0	0
Issuance of common stock upon exercise of stock options, Shares		397,306
Release of restricted stock, net of share settlement	0	$ 0	0	0	0
Release of restricted stock, net of share settlement, Shares		228,142
Stock-based compensation expense	3,899	$ 0	3,899	0	0
Withholding taxes related to release of restricted stock, net of share settlement	(1,561)	0	(1,561)	0	0
Net income	52,826	0	0	0	52,826
Other comprehensive income (loss)	(55)	0	0	(55)	0
Ending Balance at Dec. 31, 2018	211,206	$ 50	282,493	(357)	(70,980)
Ending Balance, Shares at Dec. 31, 2018		49,771,433
Beginning Balance at Jun. 30, 2019	$ 222,829	$ 50	289,768	(366)	(66,623)
Beginning Balance, Shares at Jun. 30, 2019	50,518,460	50,518,460
Issuance of common stock upon exercise of stock options	$ 3,115	$ 1	3,114	0	0
Issuance of common stock upon exercise of stock options, Shares		516,026
Release of restricted stock, net of share settlement	0	$ 1	(1)	0	0
Release of restricted stock, net of share settlement, Shares		602,271
Stock-based compensation expense	9,385	$ 0	9,385	0	0
Withholding taxes related to release of restricted stock, net of share settlement	(4,186)	0	(4,186)	0	0
Net income	2,681	0	0	0	2,681
Other comprehensive income (loss)	47	0	0	47	0
Ending Balance at Dec. 31, 2019	$ 233,871	$ 52	298,080	(319)	(63,942)
Ending Balance, Shares at Dec. 31, 2019	51,636,757	51,636,757
Beginning Balance at Sep. 30, 2019	$ 228,091	$ 51	293,866	(335)	(65,491)
Beginning Balance, Shares at Sep. 30, 2019		51,102,339
Issuance of common stock upon exercise of stock options	1,325	$ 0	1,325	0	0
Issuance of common stock upon exercise of stock options, Shares		255,965
Release of restricted stock, net of share settlement	0	$ 1	(1)	0	0
Release of restricted stock, net of share settlement, Shares		278,453
Stock-based compensation expense	4,718	$ 0	4,718	0	0
Withholding taxes related to release of restricted stock, net of share settlement	(1,828)	0	(1,828)	0	0
Net income	1,549	0	0	0	1,549
Other comprehensive income (loss)	16	0	0	16	0
Ending Balance at Dec. 31, 2019	$ 233,871	$ 52	$ 298,080	$ (319)	$ (63,942)
Ending Balance, Shares at Dec. 31, 2019	51,636,757	51,636,757

Fair Value Measurements - Schedule of Fair Value of Financial Instruments Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
Assets:
Total Assets	$ 11,323	$ 11,206
Liabilities:
Total Liabilities	18,719	21,317
Cash and cash equivalents	11,323	11,206
Other Liabilities:
Other Liabilities	18,719	21,317
Current [Member]
Other Liabilities:
Other Liabilities	8,967	8,967
Non Current [Member]
Other Liabilities:
Other Liabilities	9,752	12,350
Post-closing payments related to acquisitions [Member]
Liabilities:
Total Liabilities	13,711	16,259
Contingent consideration related to acquisitions [Member]
Liabilities:
Total Liabilities	5,008	5,058
Money market funds [Member]
Assets:
Total Assets	11,323	11,206
Level 1 [Member]
Assets:
Total Assets	11,323	11,206
Liabilities:
Total Liabilities	0	0
Level 1 [Member] \| Post-closing payments related to acquisitions [Member]
Liabilities:
Total Liabilities	0	0
Level 1 [Member] \| Contingent consideration related to acquisitions [Member]
Liabilities:
Total Liabilities	0	0
Level 1 [Member] \| Money market funds [Member]
Assets:
Total Assets	11,323	11,206
Level 2 [Member]
Assets:
Total Assets	0	0
Liabilities:
Total Liabilities	13,711	16,259
Level 2 [Member] \| Post-closing payments related to acquisitions [Member]
Liabilities:
Total Liabilities	13,711	16,259
Level 2 [Member] \| Contingent consideration related to acquisitions [Member]
Liabilities:
Total Liabilities	0	0
Level 2 [Member] \| Money market funds [Member]
Assets:
Total Assets	0	0
Level 3 [Member]
Assets:
Total Assets	0	0
Liabilities:
Total Liabilities	5,008	5,058
Level 3 [Member] \| Post-closing payments related to acquisitions [Member]
Liabilities:
Total Liabilities	0	0
Level 3 [Member] \| Contingent consideration related to acquisitions [Member]
Liabilities:
Total Liabilities	5,008	5,058
Level 3 [Member] \| Money market funds [Member]
Assets:
Total Assets	$ 0	$ 0

Revenue (Tables)

6 Months Ended

Dec. 31, 2019

Revenue From Contract With Customer [Abstract]

Schedule of Disaggregation of Net Revenue

The following table shows the Company’s net revenue disaggregated by vertical (in thousands):

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2019		2018		2019		2018
Net revenue:
Financial Services	$	89,097	$	74,410	$	181,976	$	151,776
Education		14,532		16,214		31,930		38,653
Other		14,472		13,472		30,809		26,536
Total net revenue	$	118,101	$	104,096	$	244,715	$	216,965

Schedule of Contract Liabilities from Contracts with Clients

The following table provides information about contract liabilities from the Company’s contracts with its clients (in thousands):

	December 31,		June 30,
	2019		2019
Deferred revenue	$	1,168	$	761
Client deposits		600		661

Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2019 USD ($) Client	Dec. 31, 2018 Client	Dec. 31, 2019 USD ($) Client	Dec. 31, 2018 Client	Jun. 30, 2019 USD ($) Client	Jul. 01, 2019 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Right of use assets \| $	$ 11,151		$ 11,151		$ 0	$ 13,100
Lease liability \| $	$ 14,848		$ 14,848			$ 16,700
Customer Concentration Risk [Member] \| Net revenue [Member]
Summary Of Significant Accounting Policies [Line Items]
Number of clients accounted for more than 10% of net revenue	1	1	1	1
Concentration risk percentage accounted by major clients	18.00%	21.00%	18.00%	23.00%
Number of other clients accounted for more than 10% of net revenue	0	0	0	0
Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Summary Of Significant Accounting Policies [Line Items]
Number of other clients accounted for more than 10% of net accounts receivable			0		0
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Client Two [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage accounted by major clients			9.00%		11.00%
Number of clients accounted for 10% or more than 10% of net accounts receivable			1		1

Income Taxes

6 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Income Taxes

9. Income Taxes

The Company recorded a valuation allowance against the majority of the Company’s deferred tax assets at the end of fiscal year 2014. In fiscal year 2019, due to the preponderance of positive evidence, including the Company’s cumulative profit before taxes and future forecasts of continued profitability in the United States, the Company determined that sufficient positive evidence existed to conclude that substantially all of its valuation allowance was no longer needed. Accordingly, the Company released the valuation allowance for the majority of its federal and state deferred tax assets. The Company continues to maintain a valuation allowance related to its deferred tax assets for its foreign entities and California research and development tax credits. If there are unfavorable changes to actual operating results or to projections of future income, the Company may determine that it is more likely than not that such deferred tax assets may not be realizable.

The Company’s tax provision or benefit from income taxes for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items, if any. Each quarter the Company updates its estimate of the annual effective tax rate and makes a year-to-date adjustment to the provision.

The Company recorded an immaterial benefit from income taxes for the three and six months ended December 31, 2019, and a net benefit from income taxes of $49.9 million for the three and six months ended December 31, 2018 primarily related to the release of the valuation allowance for the majority of its federal and states deferred tax assets of $49.4 million.

Net Income per Share (Tables)

6 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Calculation of Basic and Diluted Net Income per Share

The following table presents the calculation of basic and diluted net income per share:

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2019		2018		2019		2018
	(In thousands, except per share data)				(In thousands, except per share data)
Numerator:
Basic and Diluted:
Net income	$	1,549	$	52,826	$	2,681	$	58,123
Denominator:
Basic:
Weighted-average shares of common stock used in computing basic net income per share		51,414		49,490		51,129		49,077
Diluted:
Weighted-average shares of common stock used in computing basic net income per share		51,414		49,490		51,129		49,077
Weighted-average effect of dilutive securities:
Stock options		1,190		1,779		1,238		1,832
Restricted stock units		885		1,413		1,040		1,653
Weighted-average shares of common stock used in computing diluted net income per share		53,489		52,682		53,407		52,562
Net income per share:
Basic	$	0.03	$	1.07	$	0.05	$	1.18
Diluted	$	0.03	$	1.00	$	0.05	$	1.11
Securities excluded from weighted-average shares used in computing diluted net income per share because the effect would have been anti-dilutive ⁽¹⁾		852		98		790		96

⁽¹⁾	These weighted-shares relate to anti-dilutive stock options and restricted stock units as calculated using the treasury stock method and could be dilutive in the future.

Goodwill and Intangible Assets, Net

6 Months Ended

Dec. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets, Net

8. Goodwill and Intangible Assets, Net

Goodwill

As of December 31, 2019 and June 30, 2019, the Company had goodwill of $82.5 million. There were no impairments to goodwill during the six months ended December 31, 2019.

Intangible Assets, Net

Intangible assets, net, consisted of the following (in thousands):

	December 31, 2019							June 30, 2019
	Gross					Net		Gross					Net
	Carrying		Accumulated			Carrying		Carrying		Accumulated			Carrying
	Amount		Amortization			Amount		Amount		Amortization			Amount
Customer/publisher/advertiser relationships	$	70,296	$	(43,327	)	$	26,969	$	70,300	$	(40,663	)	$	29,637
Content		60,942		(60,928	)		14		60,964		(60,940	)		24
Website/trade/domain names		33,538		(30,703	)		2,835		33,546		(30,218	)		3,328
Acquired technology and others		39,399		(37,973	)		1,426		39,400		(37,271	)		2,129
Total	$	204,175	$	(172,931	)	$	31,244	$	204,210	$	(169,092	)	$	35,118

Amortization of intangible assets was $1.9 million and $3.9 million for the three and six months ended December 31, 2019 and $1.5 million and $2.2 million for the three and six months ended December 31, 2018.

Future amortization expense for the Company’s intangible assets as of December 31, 2019 was as follows (in thousands):

Fiscal Year Ending June 30,	Amortization
2020 (remaining six months)	$	3,853
2021		6,414
2022		5,297
2023		4,698
2024		3,855
Thereafter		7,127
Total	$	31,244

Segment Information

6 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Segment Information

14. Segment Information

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources and in assessing performance. The Company’s chief operating decision maker, its chief executive officer, reviews financial information presented on a consolidated basis and no expense or operating income is evaluated at a segment level. Given the consolidated level of review by the Company’s chief executive officer, the Company operates as one reportable segment.

The following tables set forth net revenue and long-lived assets by geographic area (in thousands):

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2019		2018		2019		2018
Net revenue:
United States	$	114,230	$	102,247	$	238,417	$	213,035
International		3,871		1,849		6,298		3,930
Total net revenue	$	118,101	$	104,096	$	244,715	$	216,965

	December 31,		June 30,
	2019		2019
Property and equipment, net:
United States	$	5,467	$	5,149
International		215		261
Total property and equipment, net	$	5,682	$	5,410

	December 31,		June 30,
	2019		2019
Other intangible assets, net:
United States	$	31,203	$	35,044
International		41		74
Total other intangible assets, net	$	31,244	$	35,118

Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
shares in Thousands, $ in Thousands

3 Months Ended

6 Months Ended

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2019

Dec. 31, 2018

Income Statement [Abstract]

Net revenue

$ 118,101

$ 104,096

$ 244,715

$ 216,965

Cost of revenue

^[1]

105,318

90,915

218,507

187,728

Gross profit

12,783

13,181

26,208

29,237

Operating expenses:

Product development

^[1]

3,399

2,995

6,955

6,300

Sales and marketing

^[1]

2,592

2,283

4,955

4,327

General and administrative

^[1]

5,498

5,049

11,323

10,443

Operating income

1,294

2,854

2,975

8,167

Interest income

126

135

Interest expense

(177)

(98)

(389)

(98)

Other (expense) income, net

(9)

115

(266)

Income before income taxes

1,162

2,940

2,446

8,252

Benefit from income taxes

387

49,886

235

49,871

Net income

$ 1,549

$ 52,826

$ 2,681

$ 58,123

Net income per share:

Basic

$ 0.03

$ 1.07

$ 0.05

$ 1.18

Diluted

$ 0.03

$ 1.00

$ 0.05

$ 1.11

Weighted-average shares used in computing net income per share:

Basic

51,414

49,490

51,129

49,077

Diluted

53,489

52,682

53,407

52,562

[1]

⁽¹⁾	^{Cost of revenue and operating expenses include stock-based compensation expense as follows:}

Cost of revenue	$	2,347	$	2,001	$	4,837	$	3,540
Product development		518		427		1,002		828
Sales and marketing		558		429		979		713
General and administrative		1,277		1,022		2,530		1,909

Stockholders' Equity - Additional Information (Detail) - shares	3 Months Ended	6 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Jun. 30, 2019	Oct. 31, 2017	Jul. 31, 2017
Maximum [Member]
Equity Class Of Treasury Stock [Line Items]
Stock repurchase program, number of outstanding shares authorized to repurchase				966,000	905,000
July 2017 Stock Repurchase Program [Member]
Equity Class Of Treasury Stock [Line Items]
Stock repurchase program, number of shares repurchased	0	0	0
Stock repurchase program, remaining available for repurchase	903,636	903,636

Commitments and Contingencies

6 Months Ended

Dec. 31, 2019

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

11. Commitments and Contingencies

Guarantor Arrangements

The Company has agreements whereby it indemnifies its officers and directors for certain events or occurrences while the officer or director is, or was, serving at the Company’s request in such capacity. The term of the indemnification period is for the officer or director’s lifetime. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company has a director and officer insurance policy that limits its exposure and enables the Company to recover a portion of any future amounts under certain circumstances and subject to deductibles and exclusions. As a result of its insurance policy coverage, the Company believes the estimated fair value of these indemnification agreements is not material. Accordingly, the Company had no liabilities recorded for these agreements as of December 31, 2019 and June 30, 2019.

In the ordinary course of its business, the Company from time to time enters into standard indemnification provisions in its agreements with its clients. Pursuant to these provisions, the Company may be obligated to indemnify its clients for certain losses suffered or incurred, including losses arising from violations of applicable law by the Company or by its third-party publishers, losses arising from actions or omissions of the Company or its third-party publishers, and for third-party claims that a Company product infringed upon any United States patent, copyright or other intellectual property rights. Where practicable, the Company limits its liabilities under such indemnities. Subject to these limitations, the term of such indemnification provisions is generally coterminous with the corresponding agreements but may extend for the duration of the applicable statute of limitations after termination of the agreement. The potential amount of future payments to defend lawsuits or settle indemnified claims under these indemnification provisions is generally limited and the Company believes the estimated fair value of these indemnity provisions is not material. Accordingly, the Company had no liabilities recorded for these agreements as of December 31, 2019 and June 30, 2019.

Letters of Credit

The Company has a $0.4 million letter of credit agreement with a financial institution that is used as collateral for fidelity bonds placed with an insurance company and a $0.5 million letter of credit agreement with a financial institution that is used as collateral for the Company’s corporate headquarters’ operating lease. The letters of credit automatically renew annually without amendment unless cancelled by the financial institutions within 30 days of the annual expiration date.

Stock Benefit Plans - Schedule of Weighted Average Assumptions (Detail) - Stock options [Member] - $ / shares	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	3 years 10 months 24 days	4 years	4 years 4 months 24 days	4 years 2 months 12 days
Expected volatility	58.00%	56.00%	57.00%	55.00%
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Risk-free interest rate	1.60%	2.90%	1.50%	2.90%
Grant date fair value	$ 6.97	$ 6.56	$ 5.36	$ 6.56

Acquisitions (Tables)

6 Months Ended

Dec. 31, 2019

Business Combinations [Abstract]

Schedule of Consideration

The following table summarizes the consideration for each acquisition as of the acquisition dates (in thousands):

	AmOne		CCM			MBT
Cash	$	23,032	$	8,281		$	4,511
Post-closing adjustments for net assets acquired		138		(72	)		—
Post-closing payments, net of imputed interest ⁽¹⁾		7,514		6,671			3,708
Contingent consideration		—		3,553			1,505
Total	$	30,684	$	18,433		$	9,724

⁽¹⁾	The post-closing payment is net of imputed interest of $486 thousand for AmOne, $829 thousand for CCM and $292 thousand for MBT.

Summary of Allocation of Purchase Price and Estimated Useful Lives of the Identifiable Assets Acquired

The following table summarizes the allocation of the purchase price and the estimated useful lives of the identifiable assets acquired as of the date of the acquisition (in thousands):

	AmOne		Estimated Useful Life	CCM		Estimated Useful Life	MBT		Estimated Useful Life
Customer/publisher/advertiser relationships	$	21,300	7 years	$	4,500	3-4 years	$	3,400	3-12 years
Website/trade/domain names		900	15 years		300	5 years		1,100	15 years
Acquired technology and others		500	3 years		—	n/a		—	n/a
Net assets		2,838	n/a		2,071	n/a		1,671	n/a
Goodwill		5,146	Indefinite		11,562	Indefinite		3,553	Indefinite
Total	$	30,684		$	18,433		$	9,724

Summary of Unaudited Pro Forma Financial Information Combined Results of Operations


	Three Months Ended		Six Months Ended
	December 31, 2018		December 31, 2018
	(In thousands)		(In thousands)
Net revenue	$	104,096	$	223,455
Net income		52,846		59,379

The Company

6 Months Ended

Dec. 31, 2019

Organization [Abstract]

The Company

1. The Company

QuinStreet, Inc. (the “Company”) is a leader in performance marketplace products and technologies. The Company was incorporated in California in April 1999 and reincorporated in Delaware in December 2009. The Company specializes in customer acquisition for clients in high value, information-intensive markets or “verticals,” including financial services, education, home services and business-to-business technology. The corporate headquarters are located in Foster City, California, with additional offices throughout the United States, Brazil and India. While the majority of the Company’s operations and revenue are in North America, the Company also has businesses in Brazil and India.

Revenue

6 Months Ended

Dec. 31, 2019

Revenue From Contract With Customer [Abstract]

Revenue

3. Revenue

Disaggregation of Revenue

The following table shows the Company’s net revenue disaggregated by vertical (in thousands):

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2019		2018		2019		2018
Net revenue:
Financial Services	$	89,097	$	74,410	$	181,976	$	151,776
Education		14,532		16,214		31,930		38,653
Other		14,472		13,472		30,809		26,536
Total net revenue	$	118,101	$	104,096	$	244,715	$	216,965

Contract Balances

The following table provides information about contract liabilities from the Company’s contracts with its clients (in thousands):

	December 31,		June 30,
	2019		2019
Deferred revenue	$	1,168	$	761
Client deposits		600		661

The Company’s contract liabilities result from payments received in advance of revenue recognition and advance consideration received from clients, which precede the Company’s satisfaction of the associated performance obligation. Significant changes in the liability balances during the period relate to advance consideration received from clients, offset by revenue recognized of $4.0 million during the six months ended December 31, 2019.

Stock Benefit Plans - Additional Information (Detail)	Dec. 31, 2019 shares
2010 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance	23,390,511
Shares available for issuance	16,079,083
Directors' Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance	4,333,939
Shares available for issuance	2,176,642

Acquisitions - Summary of Allocation of Purchase Price and Estimated Useful Lives of the Identifiable Assets Acquired (Detail) - USD ($) $ in Thousands	May 14, 2019	Apr. 15, 2019	Oct. 01, 2018	Dec. 31, 2019	Jun. 30, 2019
Business Acquisition [Line Items]
Goodwill				$ 82,544	$ 82,544
AmOne Corp [Member]
Business Acquisition [Line Items]
Goodwill			$ 5,146
Total purchase price			30,684
AmOne Corp [Member] \| Customer/publisher/advertiser relationships [Member]
Business Acquisition [Line Items]
Estimated Fair Value			$ 21,300
Estimated Useful Life			7 years
AmOne Corp [Member] \| Website/trade/domain names [Member]
Business Acquisition [Line Items]
Estimated Fair Value			$ 900
Estimated Useful Life			15 years
AmOne Corp [Member] \| Acquired technology and others [Member]
Business Acquisition [Line Items]
Estimated Fair Value			$ 500
Estimated Useful Life			3 years
AmOne Corp [Member] \| Net assets [Member]
Business Acquisition [Line Items]
Estimated Fair Value			$ 2,838
CloudControlMedia, LLC [Member]
Business Acquisition [Line Items]
Goodwill		$ 11,562
Total purchase price		18,433
CloudControlMedia, LLC [Member] \| Customer/publisher/advertiser relationships [Member]
Business Acquisition [Line Items]
Estimated Fair Value		$ 4,500
CloudControlMedia, LLC [Member] \| Customer/publisher/advertiser relationships [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Estimated Useful Life		3 years
CloudControlMedia, LLC [Member] \| Customer/publisher/advertiser relationships [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Estimated Useful Life		4 years
CloudControlMedia, LLC [Member] \| Website/trade/domain names [Member]
Business Acquisition [Line Items]
Estimated Fair Value		$ 300
Estimated Useful Life		5 years
CloudControlMedia, LLC [Member] \| Acquired technology and others [Member]
Business Acquisition [Line Items]
Estimated Fair Value		$ 0
CloudControlMedia, LLC [Member] \| Net assets [Member]
Business Acquisition [Line Items]
Estimated Fair Value		$ 2,071
MyBankTracker.com, LLC [Member]
Business Acquisition [Line Items]
Goodwill	$ 3,553
Total purchase price	9,724
MyBankTracker.com, LLC [Member] \| Customer/publisher/advertiser relationships [Member]
Business Acquisition [Line Items]
Estimated Fair Value	$ 3,400
MyBankTracker.com, LLC [Member] \| Customer/publisher/advertiser relationships [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Estimated Useful Life	3 years
MyBankTracker.com, LLC [Member] \| Customer/publisher/advertiser relationships [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Estimated Useful Life	12 years
MyBankTracker.com, LLC [Member] \| Website/trade/domain names [Member]
Business Acquisition [Line Items]
Estimated Fair Value	$ 1,100
Estimated Useful Life	15 years
MyBankTracker.com, LLC [Member] \| Acquired technology and others [Member]
Business Acquisition [Line Items]
Estimated Fair Value	$ 0
MyBankTracker.com, LLC [Member] \| Net assets [Member]
Business Acquisition [Line Items]
Estimated Fair Value	$ 1,671

Goodwill and Intangible Assets, Net (Tables)

6 Months Ended

Dec. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible Assets, Net

Intangible assets, net, consisted of the following (in thousands):

	December 31, 2019							June 30, 2019
	Gross					Net		Gross					Net
	Carrying		Accumulated			Carrying		Carrying		Accumulated			Carrying
	Amount		Amortization			Amount		Amount		Amortization			Amount
Customer/publisher/advertiser relationships	$	70,296	$	(43,327	)	$	26,969	$	70,300	$	(40,663	)	$	29,637
Content		60,942		(60,928	)		14		60,964		(60,940	)		24
Website/trade/domain names		33,538		(30,703	)		2,835		33,546		(30,218	)		3,328
Acquired technology and others		39,399		(37,973	)		1,426		39,400		(37,271	)		2,129
Total	$	204,175	$	(172,931	)	$	31,244	$	204,210	$	(169,092	)	$	35,118

Amortization Expense

Future amortization expense for the Company’s intangible assets as of December 31, 2019 was as follows (in thousands):

Fiscal Year Ending June 30,	Amortization
2020 (remaining six months)	$	3,853
2021		6,414
2022		5,297
2023		4,698
2024		3,855
Thereafter		7,127
Total	$	31,244

Commitments and Contingencies - Additional Information (Detail) - USD ($)	6 Months Ended
	Dec. 31, 2019	Jun. 30, 2019
Commitments And Contingencies Disclosure [Abstract]
Estimated fair value of indemnification agreements	$ 0	$ 0
Estimated fair value of indemnity provisions	0	$ 0
Letter of credit agreement with a financial institution that is used as collateral for fidelity bonds placed with an insurance company	400,000
Letter of credit agreement with a financial institution that is used as collateral for the Company's corporate headquarters' operating lease	$ 500,000
Letters of credit automatically renew annually without amendment on the annual expiration date	30 days

Fair Value Measurements (Tables)

6 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Financial Instruments Measured at Fair Value on Recurring Basis

The following table presents the fair value of the Company’s financial instruments (in thousands):

	December 31, 2019								June 30, 2019
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	11,323	$	—	$	—	$	11,323	$	11,206	$	—	$	—	$	11,206
Total	$	11,323	$	—	$	—	$	11,323	$	11,206	$	—	$	—	$	11,206
Liabilities:
Post-closing payments related to acquisitions	$	—	$	13,711	$	—	$	13,711	$	—	$	16,259	$	—	$	16,259
Contingent consideration related to acquisitions		—		—		5,008		5,008		—		—		5,058		5,058
Total	$	—	$	13,711	$	5,008	$	18,719	$	—	$	16,259	$	5,058	$	21,317

Reported as:
Cash and cash equivalents							$	11,323							$	11,206
Other Liabilities:
Current							$	8,967							$	8,967
Noncurrent								9,752								12,350
Total							$	18,719							$	21,317

Schedule of Change in Contingent Consideration

The following table represents the change in the contingent consideration (in thousands):

	Three Months Ended		Six Months Ended
	December 31, 2019		December 31, 2019
Balance at the beginning of period	$	5,008	$	5,058
Changes in fair value during the period		—		—
Payments made during the period		—		(50	)
Balance at the end of period	$	5,008	$	5,008

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 1,549	$ 52,826	$ 2,681	$ 58,123
Other comprehensive income (loss):
Foreign currency translation adjustment	16	(55)	47	23
Total other comprehensive income (loss)	16	(55)	47	23
Comprehensive income	$ 1,565	$ 52,771	$ 2,728	$ 58,146

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Fair Value Measurements - Schedule of Change in Contingent Consideration (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Abstract]
Balance at the beginning of period	$ 5,008	$ 5,058
Changes in fair value during the period	0	0
Payments made during the period	0	(50)
Balance at the end of period	$ 5,008	$ 5,008

Segment Information (Tables)

6 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Net Revenue and Long-Lived Assets by Geographic Area

The following tables set forth net revenue and long-lived assets by geographic area (in thousands):

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2019		2018		2019		2018
Net revenue:
United States	$	114,230	$	102,247	$	238,417	$	213,035
International		3,871		1,849		6,298		3,930
Total net revenue	$	118,101	$	104,096	$	244,715	$	216,965

	December 31,		June 30,
	2019		2019
Property and equipment, net:
United States	$	5,467	$	5,149
International		215		261
Total property and equipment, net	$	5,682	$	5,410

	December 31,		June 30,
	2019		2019
Other intangible assets, net:
United States	$	31,203	$	35,044
International		41		74
Total other intangible assets, net	$	31,244	$	35,118

Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands				3 Months Ended	6 Months Ended
	May 14, 2019	Apr. 15, 2019	Oct. 01, 2018	Dec. 31, 2018	Dec. 31, 2018
AmOne Corp [Member]
Business Acquisition [Line Items]
Closing date of acquisition			Oct. 01, 2018
Cash paid upon closing			$ 23,032
Cash paid for net assets acquired			2,700
Business Combination, post-closing payments			$ 8,000
Business combination, deferred consideration payment period			2 years
Business combination, deferred consideration payment description			post-closing payments, payable in equal semi-annual installments over a two year period, with the first installment being paid six months following the date of closing.
Date of acquisition			Oct. 01, 2018
CloudControlMedia, LLC [Member]
Business Acquisition [Line Items]
Closing date of acquisition		Apr. 15, 2019
Cash paid upon closing		$ 8,281
Cash paid for net assets acquired		800
Business Combination, post-closing payments		$ 7,500
Business combination, deferred consideration payment period		4 years
Business combination, deferred consideration payment description		The $7.5 million post-closing payments are payable in cash in equal semi-annual installments over a four year period, with the first installment paid six months following the date of closing.
Date of acquisition		Apr. 15, 2019
Business combination, contingent consideration payment description		The contingent consideration is payable for five years following the date of closing and is calculated every June 30 and December 31 for the preceding six months.
Business combination contingent consideration payable period		5 years
MyBankTracker.com, LLC [Member]
Business Acquisition [Line Items]
Closing date of acquisition	May 14, 2019
Cash paid upon closing	$ 4,511
Cash paid for net assets acquired	1,500
Business Combination, post-closing payments	$ 4,000
Business combination, deferred consideration payment period	2 years
Business combination, deferred consideration payment description	The $4.0 million post-closing payments are payable in cash in equal semi-annual installments over a two year period, with the first installment payable twelve months following the date of closing.
Date of acquisition	May 14, 2019
Business combination, contingent consideration payment description	The contingent consideration is calculated semi-annually for the preceding six months beginning on December 31, 2019 and ending on June 30, 2023.
AmOne Corp, CloudControlMedia, LLC, and MyBankTracker.com, LLC [Member] \| Pro Forma Financial Information [Member] \| Nonrecurring Acquisition Cost [Member]
Business Acquisition [Line Items]
Business combination, acquisition related costs				$ 20	$ 192

Revenue - Additional Information (Detail) $ in Millions	6 Months Ended
Revenue - Additional Information (Detail) $ in Millions	Dec. 31, 2019 USD ($)
Revenue From Contract With Customer [Abstract]
Revenue recognized	$ 4.0

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Deferred tax assets, net of valuation allowance		$ 49,400		$ 49,400
Benefit from income taxes	$ 387	$ 49,886	$ 235	$ 49,871

Segment Information - Additional Information (Detail)	6 Months Ended
Segment Information - Additional Information (Detail)	Dec. 31, 2019 Segment
Segment Reporting [Abstract]
Number of reportable segments	1

Summary of Significant Accounting Policies

6 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Basis of Presentation

Principles of Consolidation

The condensed consolidated financial statements include the accounts of the Company and its subsidiaries. Intercompany balances and transactions have been eliminated in consolidation.

Unaudited Interim Financial Information

The accompanying condensed consolidated financial statements and the notes to the condensed consolidated financial statements as of December 31, 2019 and for the three and six months ended December 31, 2019 and 2018 are unaudited. These unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Accordingly, these interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2019, as filed with the SEC on August 29, 2019. The condensed consolidated balance sheet at June 30, 2019 included herein was derived from the audited financial statements as of that date, but does not include all disclosures, including notes, required by GAAP.

The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements and, in the opinion of management, include all adjustments (consisting only of normal recurring adjustments) necessary for the fair presentation of the Company’s condensed consolidated balance sheet at December 31, 2019, its condensed consolidated statements of stockholders’ equity, operations and comprehensive income for the three and six months ended December 31, 2019 and 2018 and condensed consolidated statements of cash flows for the six months ended December 31, 2019 and 2018. The results of operations for the three and six months ended December 31, 2019 are not necessarily indicative of the results to be expected for the fiscal year ending June 30, 2020, or any other future period.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenue and expenses during the period. On an ongoing basis, management evaluates these estimates, judgments and assumptions, including those related to revenue recognition, stock-based compensation, goodwill, long-lived assets, contingencies, and income taxes. The Company bases these estimates on historical and anticipated results and trends and on various other assumptions that the Company believes are reasonable under the circumstances, including assumptions as to future events. These estimates form the basis for making judgments about the carrying values of assets and liabilities and recorded revenue and expenses that are not readily apparent from other sources. Actual results could differ from those estimates, and such differences could affect the results of operations reported in future periods.

Accounting Policies

The significant accounting policies are described in Note 2, Summary of Significant Accounting Policies, to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2019. There have been no material changes to our significant accounting policies as of and for the six months ended December 31, 2019, except for the accounting policy for leases that was updated as a result of adopting Accounting Standards Update 2016-02—Leases (Topic 842). For more information, refer to “Recently Adopted Accounting Standards” and Note 10, Leases.

Leases

At the commencement date of a lease, the Company recognizes lease liabilities which represent its obligation to make lease payments, and right-of-use (“ROU”) assets which represent its right to use the underlying asset during the lease term. The lease liability is measured at the present value of lease payments over the lease term. As the Company’s leases typically do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available at the lease commencement date. The ROU asset is measured at cost, which includes the initial measurement of the lease liability and initial direct costs incurred by the Company and excludes lease incentives. Lease liabilities are recorded in accrued liabilities and operating lease liabilities, noncurrent. ROU assets are recorded in operating lease ROU assets.

Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Operating lease expense is recognized on a straight-line basis over the lease term. Lease agreements that contain both lease and non-lease components are generally accounted for separately. The Company does not recognize lease liabilities and ROU assets for short-term leases with terms of twelve months or less.

Concentrations of Credit Risk

The Company had one client that accounted for 18% of net revenue for both the three and six months ended December 31, 2019 and 21% and 23% of net revenue for the three and six months ended December 31, 2018. That same client accounted for 9% and 11% of net accounts receivable as of December 31, 2019 and June 30, 2019. No other clients accounted for 10% or more of net revenue for the three and six months ended December 31, 2019 or 2018 or 10% or more of net accounts receivable as of December 31, 2019 or June 30, 2019.

Fair Value of Financial Instruments

The Company’s financial instruments consist principally of cash equivalents, accounts receivable, accounts payable, post-closing payments and contingent consideration related to acquisitions in fiscal year 2019. The recorded values of the Company’s accounts receivable and accounts payable approximate their current fair values due to the relatively short-term nature of these accounts.

Cash and Cash Equivalents

All highly liquid investments with maturities of three months or less at the date of purchase are classified as cash equivalents on the Company’s condensed consolidated balance sheets.

Recent Accounting Pronouncements

Accounting Pronouncements Adopted

Leases. In February 2016, the Financial Accounting Standards Board (the “FASB”) issued new accounting standard update on leases, which requires the recognition of lease liabilities and ROU assets on the condensed consolidated balance sheet, while recognizing expenses on the condensed consolidated income statements in a manner similar to legacy guidance. The Company adopted the new standard as of July 1, 2019 using the modified transition approach to all leases existing at the date of initial application and not restating comparative periods. The primary impact of adopting the new standard was the recognition of lease liabilities of $16.7 million and ROU assets of $13.1 million for operating leases in the first quarter of fiscal year 2020, which included reclassifying deferred rent as a component of the ROU assets. The Company's adoption of the new standard had no material impact on its consolidated condensed statement of operations and cash flows.

The Company elected certain transition practical expedients, which allows the Company not to reassess (i) whether any expired or existing contracts as of the adoption date are or contain a lease, (ii) lease classification for any expired or existing leases as of the adoption date and (iii) initial direct costs for any existing leases as of the adoption date. In addition, the Company has elected not to recognize lease liabilities and ROU assets for short-term leases with terms of twelve months or less. See Note 10, Leases, for further information regarding the impact of adoption of the standard on the Company’s condensed consolidated financial statements.

Goodwill Impairment. In January 2017, the FASB issued a new accounting standard update to simplify the measurement of goodwill by eliminating the Step 2 impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. The new guidance requires an entity to compare the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. The new guidance becomes effective for goodwill impairment tests in fiscal years beginning after December 31, 2019, with early adoption permitted. The Company early adopted the new standard effective on July 1, 2019. The adoption of this standard did not have a material impact on the Company’s condensed consolidated financial statements.

Accounting Pronouncements Not Yet Adopted

Fair Value Measurements. In August 2018, the FASB issued a new accounting standard which eliminates, adds and modifies certain disclosure requirements for fair value measurement. The new guidance is effective for the Company in the first quarter of fiscal year 2021. Implementation on a prospective or retrospective basis varies by specific disclosure requirement. Early adoption is permitted. The standard also allows for early adoption of any removed or modified disclosures upon issuance of the new guidance while delaying adoption of the additional disclosures until their effective date. The Company is currently assessing the impact the new guidance will have on the financial statement disclosures.

There were no other significant updates to the recently issued accounting standards other than as disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2019.

Although there are several other new accounting pronouncements issued or proposed by the FASB, the Company does not believe any of these accounting pronouncements has had or will have a material impact on its consolidated financial position or operating results.

Net Income per Share - Calculation of Basic and Diluted Net Income per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands

3 Months Ended

6 Months Ended

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2019

Dec. 31, 2018

Basic and Diluted:

Net income

$ 1,549

$ 52,826

$ 2,681

$ 58,123

Basic:

Weighted-average shares of common stock used in computing basic net income per share

51,414

49,490

51,129

49,077

Diluted:

Weighted-average shares of common stock used in computing basic net income per share

51,414

49,490

51,129

49,077

Weighted-average effect of dilutive securities:

Weighted-average shares of common stock used in computing diluted net income per share

53,489

52,682

53,407

52,562

Net income per share:

Basic

$ 0.03

$ 1.07

$ 0.05

$ 1.18

Diluted

$ 0.03

$ 1.00

$ 0.05

$ 1.11

Securities excluded from weighted-average shares used in computing diluted net income per share because the effect would have been anti-dilutive:

^[1]

852

790

Stock options [Member]

Weighted-average effect of dilutive securities:

Weighted-average effect of dilutive securities

1,190

1,779

1,238

1,832

Restricted stock units [Member]

Weighted-average effect of dilutive securities:

Weighted-average effect of dilutive securities

885

1,413

1,040

1,653

[1]	These weighted-shares relate to anti-dilutive stock options and restricted stock units as calculated using the treasury stock method and could be dilutive in the future.

Subsequent Events - Additional Information (Detail) - Subsequent Event [Member] - California Franchise Tax Board [Member] $ in Millions	Jan. 08, 2020 USD ($)
Subsequent Event [Line Items]
Refund of tax	$ 3.1
Income tax examination, description	On January 8, 2020, the Company reached a settlement with the California Franchise Tax Board for the taxable years 2006 to 2011 and expects to receive a tax refund of $3.1 million.

Leases (Tables)

6 Months Ended

Dec. 31, 2019

Leases [Abstract]

Components of Lease Expense

The components of lease expense were as follows (in thousands):

	Three Months Ended		Six Months Ended
	December 31, 2019		December 31, 2019
Operating lease expense	$	999	$	2,003
Short-term lease expense		268		556
Variable lease expense ⁽¹⁾		154		298
Total lease expense	$	1,421	$	2,857

⁽¹⁾	Variable lease expense for the three and six months ended December 31, 2019 primarily included common area maintenance charges.

Supplemental Information Related to Operating Leases

Supplemental information related to operating leases was as follows (in thousands, except lease term and discount rate):

	Six Months Ended
	December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used for operating leases	$	1,846

Lease liabilities arising from obtaining right-of-use assets
Operating leases	$	43

Weighted average remaining lease term - operating leases	3.7 years
Weighted average discount rate - operating leases		4.5	%

Maturities of Operating Lease Liabilities

Maturities of operating lease liabilities as of December 31, 2019 were as follows (in thousands):

Fiscal Year Ending June 30,	Amount
2020 (remaining six months)	$	1,911
2021		4,563
2022		4,273
2023		3,834
2024		1,810
Thereafter		183
Total minimum lease payments	$	16,574
Less imputed interest		(1,726	)
Present value of net minimum lease payments	$	14,848
Operating lease liabilities:
Current		4,079
Noncurrent		10,769
Total	$	14,848

Future Annual Minimum Lease Payments under Noncancelable Operating Leases

Future annual minimum lease payments under noncancellable operating leases as of June 30, 2019 were as follows (in thousands):

	Operating
Fiscal Year Ending June 30,	Leases
2020	$	3,529
2021		4,263
2022		4,234
2023		3,801
2024		1,312
Thereafter		176
Total	$	17,315

Net Income per Share

6 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Net Income per Share

4. Net Income per Share

Basic net income per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period. Diluted net income per share is computed by using the weighted-average number of shares of common stock outstanding, including potential dilutive shares of common stock assuming the dilutive effect of outstanding stock options and restricted stock units using the treasury stock method.

The following table presents the calculation of basic and diluted net income per share:

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2019		2018		2019		2018
	(In thousands, except per share data)				(In thousands, except per share data)
Numerator:
Basic and Diluted:
Net income	$	1,549	$	52,826	$	2,681	$	58,123
Denominator:
Basic:
Weighted-average shares of common stock used in computing basic net income per share		51,414		49,490		51,129		49,077
Diluted:
Weighted-average shares of common stock used in computing basic net income per share		51,414		49,490		51,129		49,077
Weighted-average effect of dilutive securities:
Stock options		1,190		1,779		1,238		1,832
Restricted stock units		885		1,413		1,040		1,653
Weighted-average shares of common stock used in computing diluted net income per share		53,489		52,682		53,407		52,562
Net income per share:
Basic	$	0.03	$	1.07	$	0.05	$	1.18
Diluted	$	0.03	$	1.00	$	0.05	$	1.11
Securities excluded from weighted-average shares used in computing diluted net income per share because the effect would have been anti-dilutive ⁽¹⁾		852		98		790		96

⁽¹⁾	These weighted-shares relate to anti-dilutive stock options and restricted stock units as calculated using the treasury stock method and could be dilutive in the future.