CONSOLIDATED STATEMENTS OF STOCKHOLDERS' (DEFICIT) EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Treasury Stock
Balance at Jun. 30, 2013	$ 101,898	$ 9,995	$ 575,770	$ (349,817)	$ 7,263	$ (141,313)
Balance (in shares) at Jun. 30, 2013		99,945,545				6,261,776
Comprehensive income (loss):
Net income	85,783			85,783
Other comprehensive income (loss)	2,109				2,109
Exercise of stock options	8,710	$ 72	8,638
Exercise of stock options (in shares)		723,330
Withholding taxes related to restricted stock units net share settlement	(7,831)	$ 36	(7,867)
Withholding taxes related to restricted stock units net share settlement (in shares)		364,865
Repurchase of common stock	$ (121,776)					$ (121,776)
Repurchase of common stock (in shares)	3,110,114					3,110,114
Stock-based compensation	$ 14,056		14,056
Excess tax benefits from stock-based compensation	727		727
Balance at Jun. 30, 2014	83,676	$ 10,103	591,324	(264,034)	9,372	$ (263,089)
Balance (in shares) at Jun. 30, 2014		101,033,740				9,371,890
Comprehensive income (loss):
Net income	118,407			118,407
Other comprehensive income (loss)	(2,902)				(2,902)
Exercise of stock options	4,666	$ 31	4,635
Exercise of stock options (in shares)		308,847
Withholding taxes related to restricted stock units net share settlement	(5,657)	$ 27	(5,684)
Withholding taxes related to restricted stock units net share settlement (in shares)		264,933
Repurchase of common stock	$ (298,344)					$ (298,344)
Repurchase of common stock (in shares)	7,731,428					7,731,428
Stock-based compensation	$ 14,584		14,584
Excess tax benefits from stock-based compensation	37,024		37,024
Balance at Jun. 30, 2015	$ (48,546)	$ 10,161	641,883	(145,627)	6,470	$ (561,433)
Balance (in shares) at Jun. 30, 2015	101,607,520	101,607,520				17,103,318
Comprehensive income (loss):
Net income	$ 139,951			139,951
Other comprehensive income (loss)	(3,819)				(3,819)
Exercise of stock options	3,920	$ 20	3,900
Exercise of stock options (in shares)		201,706
Withholding taxes related to restricted stock units net share settlement	(4,409)	$ 22	(4,431)
Withholding taxes related to restricted stock units net share settlement (in shares)		222,734
Repurchase of common stock	$ (180,066)					$ (180,066)
Repurchase of common stock (in shares)	4,750,692					4,750,692
Stock-based compensation	$ 15,727		15,727
Excess tax benefits from stock-based compensation	2,208		2,208
Balance at Jun. 30, 2016	$ (75,034)	$ 10,203	$ 659,287	$ (5,676)	$ 2,651	$ (741,499)
Balance (in shares) at Jun. 30, 2016	102,031,960	102,031,960				21,854,010