Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Retained Earnings
Balance at Jun. 30, 2011	$ 188,466	$ 42	$ 115,064	$ 537	$ 72,823
Balance (in shares) at Jun. 30, 2011		41,823,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		1,017,000
Issuance of common stock upon exercise of stock options	2,108	1	2,107
Repurchases of common stock (in shares)		(1,487,000)
Repurchases of common stock	(12,545)	(1)	(4,564)		(7,980)
Stock-based compensation expense	5,122		5,122
Excess tax benefit from employee stock options	1,126		1,126
Foreign currency translation adjustment, net of taxes	(87)			(87)
Unrealized net loss on available-for-sale securities, net of taxes	(80)			(80)
Net income (loss)	32,408				32,408
Balance at Jun. 30, 2012	216,518	42	118,855	370	97,251
Balance (in shares) at Jun. 30, 2012		41,353,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options and release of restricted stock units (in shares)		1,117,000
Issuance of common stock upon exercise of stock options and release of restricted stock units	2,741	1	2,740
Issuance of restricted common stock in connection with acquisition (in shares)		587,000
Issuance of restricted common stock in connection with acquisition	0	1	(1)
Repurchases of common stock (in shares)		(3,715,000)
Repurchases of common stock	(26,310)	(4)	(11,846)		(14,460)
Stock-based compensation expense	8,647		8,647
Excess tax benefit from employee stock options	(202)		(202)
Foreign currency translation adjustment, net of taxes	13			13
Unrealized net loss on available-for-sale securities, net of taxes	(10)			(10)
Net income (loss)	13,067				13,067
Balance at Jun. 30, 2013	214,464	40	118,193	373	95,858
Balance (in shares) at Jun. 30, 2013		39,342,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	217,000	217,000
Issuance of common stock upon exercise of stock options	896	0	896
Release of restricted stock units (shares)		440,000
Release of restricted stock units	(1,570)	0	(1,570)
Issuance of restricted common stock in connection with acquisition (in shares)		732,000
Issuance of restricted common stock in connection with acquisition	4,610	1	4,609
Repurchases of common stock (in shares)		(1,269,000)
Repurchases of common stock	(7,899)	(1)	(4,075)		(3,823)
Stock-based compensation expense	11,535		11,535
Excess tax benefit from employee stock options	(310)		(310)
Foreign currency translation adjustment, net of taxes	51			51
Unrealized net loss on available-for-sale securities, net of taxes	152			152
Net income (loss)	(29,524)				(29,524)
Balance at Jun. 30, 2014	$ 192,405	$ 40	$ 129,278	$ 576	$ 62,511
Balance (in shares) at Jun. 30, 2014		39,462,000