Consolidated Statements Of Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income
Beginning Balance at Jun. 30, 2011	$ 301,436	$ 291	$ 213,777	$ 86,113	$ 1,255
Beginning Balance (in shares) at Jun. 30, 2011		29,144,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		481,000
Issuance of common stock under employee stock incentive plans	466	5	461
Issuance of common stock under employee stock purchase plan (in shares)		104,000
Issuance of common stock under employee stock purchase plan	1,165	1	1,164
Stock-based compensation	6,616		6,616
Tax benefit from employee stock plan awards	751		751
Net (loss) income	22,619			22,619
Net unrealized gain (loss) on investments	(2)				(2)
Foreign currency translation adjustments	53				53
Ending Balance at Jun. 30, 2012	333,104	297	222,769	108,732	1,306
Ending Balance (in shares) at Jun. 30, 2012		29,729,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		548,000
Issuance of common stock under employee stock incentive plans	436	6	430
Issuance of common stock under employee stock purchase plan (in shares)		104,000
Issuance of common stock under employee stock purchase plan	814	1	813
Stock-based compensation	7,940		7,940
Tax shortfall from employee stock plan awards	(754)		(754)
Net (loss) income	(13,208)			(13,208)
Share-based business combination consideration	513		513
Net unrealized gain (loss) on investments	15				15
Foreign currency translation adjustments	(359)				(359)
Ending Balance at Jun. 30, 2013	328,501	304	231,711	95,524	962
Ending Balance (in shares) at Jun. 30, 2013	30,381,254	30,381,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		811,000
Issuance of common stock under employee stock incentive plans	706	8	698
Issuance of common stock under employee stock purchase plan (in shares)		92,000
Issuance of common stock under employee stock purchase plan	778	0	778
Stock-based compensation	9,244		9,244
Tax shortfall from employee stock plan awards	(706)		(706)
Net (loss) income	(11,425)			(11,425)
Net unrealized gain (loss) on investments	(16)				(16)
Foreign currency translation adjustments	65				65
Ending Balance at Jun. 30, 2014	$ 327,147	$ 312	$ 241,725	$ 84,099	$ 1,011
Ending Balance (in shares) at Jun. 30, 2014	31,284,273	31,284,000