CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Comprehensive Income
Balance at Jun. 30, 2008	$ 422,022	$ 9	$ 178,542	$ (31,368)	$ 402	$ 274,437
Balance (in shares) at Jun. 30, 2008		87,475
Comprehensive income (loss)
Net (loss) income	68,760					68,760	68,760
Foreign currency translation	(3,080)				(3,080)		(3,080)
Other post employment benefit adjustment	177				177		177
Total comprehensive income (loss)	65,857						65,857
Issuance of common stock from employee stock purchase plan and exercise of stock options, including tax benefit	18,013		18,013
Issuance of common stock from employee stock purchase plan and exercise of stock options, including tax benefit (in shares)		1,866
Stock based compensation expense	11,776		11,776
Balance at Jun. 30, 2009	517,668	9	208,331	(31,368)	(2,501)	343,197
Balance (in shares) at Jun. 30, 2009		89,341
Comprehensive income (loss)
Net (loss) income	145,971					145,971	145,971
Foreign currency translation	2,850				2,850		2,850
Other post employment benefit adjustment	253				253		253
Total comprehensive income (loss)	149,074						149,074
Issuance of common stock from employee stock purchase plan and exercise of stock options, including tax benefit	10,288		10,288
Issuance of common stock from employee stock purchase plan and exercise of stock options, including tax benefit (in shares)		1,045
Stock based compensation expense	14,004		14,004
Balance at Jun. 30, 2010	691,034	9	232,623	(31,368)	602	489,168
Balance (in shares) at Jun. 30, 2010	90,386	90,386
Comprehensive income (loss)
Net (loss) income	(111,165)					(111,165)	(111,165)
Foreign currency translation	819				819		819
Other post employment benefit adjustment	120				120		120
Total comprehensive income (loss)	(110,226)						(110,226)
Issuance of common stock from employee stock purchase plan and exercise of stock options, including tax benefit	(1,020)		(1,020)
Issuance of common stock from employee stock purchase plan and exercise of stock options, including tax benefit (in shares)		400
Treasury stock repurchase	(25,000)			(25,000)
Stock based compensation expense	10,279		10,279
Balance at Jun. 30, 2011	$ 565,067	$ 9	$ 241,882	$ (56,368)	$ 1,541	$ 378,003
Balance (in shares) at Jun. 30, 2011	90,786	90,786