Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock and Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive (Loss) Income	Retained Earnings	Non-controlling Interest	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjustment Common Stock and Additional Paid-In Capital	Cumulative Effect, Period of Adoption, Adjustment Retained Earnings
Shares outstanding, beginning balance (in shares) at Jun. 30, 2017		50,273,527	1,333,125
Stockholders' equity, beginning balance at Jun. 30, 2017	$ 773,846	$ 308,271	$ (20,491)	$ (77)	$ 485,973	$ 170	$ 185	$ 52	$ 133
Increase (Decrease) in Stockholders' Equity
Exercise of stock options, net of taxes (in shares)	267,970	267,970
Exercise of stock options, net of taxes	$ 3,043	$ 3,043
Release of common stock shares upon vesting of restricted stock units (in shares)		572,789
Release of common stock shares upon vesting of restricted stock units	0	$ 0
Shares withheld for the withholding tax on vesting of restricted stock units (in shares)		(199,715)
Shares withheld for the withholding tax on vesting of restricted stock units	(4,472)	$ (4,472)
Stock-based compensation	24,656	$ 24,656
Net changes in unrealized loss on investments, net of taxes	(38)			(38)
Foreign currency translation gain (loss)	280			280
Net income	46,152				46,165	(13)
Shares outstanding, ending balance (in shares) at Jun. 30, 2018		50,914,571	1,333,125
Stockholders' equity, ending balance at Jun. 30, 2018	843,652	$ 331,550	$ (20,491)	165	532,271	157	$ 7,714		$ 7,714
Increase (Decrease) in Stockholders' Equity
Release of common stock shares upon vesting of restricted stock units (in shares)		549,886
Release of common stock shares upon vesting of restricted stock units	0
Shares withheld for the withholding tax on vesting of restricted stock units (in shares)		(175,044)
Shares withheld for the withholding tax on vesting of restricted stock units	(3,051)	$ (3,051)
Stock-based compensation	21,184	$ 21,184
Net changes in unrealized loss on investments, net of taxes	0
Foreign currency translation gain (loss)	(245)			(245)
Net income	$ 71,922				71,918	4
Shares outstanding, ending balance (in shares) at Jun. 30, 2019	49,956,288	51,289,413	1,333,125
Stockholders' equity, ending balance at Jun. 30, 2019	$ 941,176	$ 349,683	$ (20,491)	(80)	611,903	161
Increase (Decrease) in Stockholders' Equity
Exercise of stock options, net of taxes (in shares)	1,812,000	1,804,789
Exercise of stock options, net of taxes	$ 28,343	$ 28,343
Release of common stock shares upon vesting of restricted stock units (in shares)		979,274
Release of common stock shares upon vesting of restricted stock units	0
Shares withheld for the withholding tax on vesting of restricted stock units (in shares)		(331,648)
Shares withheld for the withholding tax on vesting of restricted stock units	(8,243)	$ (8,243)
Stock-based compensation	20,189	$ 20,189
Net changes in unrealized loss on investments, net of taxes	0
Foreign currency translation gain (loss)	(72)			(72)
Net income	$ 84,314				84,308	6
Shares outstanding, ending balance (in shares) at Jun. 30, 2020	52,408,703	53,741,828	1,333,125
Stockholders' equity, ending balance at Jun. 30, 2020	$ 1,065,707	$ 389,972	$ (20,491)	$ (152)	$ 696,211	$ 167