CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Total USD ($)	Preferred stock	Common Stock USD ($)	Additional Paid-In Capital USD ($)	Retained Earnings USD ($)	Treasury Stock USD ($)
Balance, start of year (value) at Jun. 30, 2009						$ (309,585)
Balance, start of year (value) at Jun. 30, 2009			980	298,378	636,733
Shares, beginning of year at Jun. 30, 2009			98,020,796
Preferred Stock, Shares Outstanding		0
Shares issued for equity-based payment arrangements (shares)			1,689,457
Shares issued for equity-based payment arrangements (value)			17
Shares issued for Employee Stock Purchase Plan (shares)			98,114
Shares issued for Employee Stock Purchase Plan (value)			1	1,953
Shares issued upon exercise of stock options (value)				26,569
Tax benefits from share-based compensation (value)				4,666
Stock-based compensation expense (value)				3,251
Net Income	117,870				117,870
Dividends (value)					(30,461)
Purchase of treasury shares						0
Balance, end of year (value) at Jun. 30, 2010						(309,585)
Balance, end of year (value) at Jun. 30, 2010	750,372		998	334,817	724,142
Shares, end of year at Jun. 30, 2010			99,808,367
Preferred Stock, Shares Outstanding		0
Shares issued for equity-based payment arrangements (shares)			857,348
Shares issued for equity-based payment arrangements (value)			9
Shares issued for Employee Stock Purchase Plan (shares)			100,458
Shares issued for Employee Stock Purchase Plan (value)			1	2,456
Shares issued upon exercise of stock options (value)				16,837
Tax benefits from share-based compensation (value)				2,298
Stock-based compensation expense (value)				4,723
Net Income	137,471				137,471
Dividends (value)					(34,391)
Purchase of treasury shares						0
Balance, end of year (value) at Jun. 30, 2011	(309,585)					(309,585)
Balance, end of year (value) at Jun. 30, 2011	879,776		1,008	361,131	827,222
Shares, end of year at Jun. 30, 2011			100,766,173
Preferred Stock, Shares Outstanding		0
Shares issued for equity-based payment arrangements (shares)			594,428
Shares issued for equity-based payment arrangements (value)			6
Shares issued for Employee Stock Purchase Plan (shares)			121,860
Shares issued for Employee Stock Purchase Plan (value)			1	3,321
Shares issued upon exercise of stock options (value)				6,886
Tax benefits from share-based compensation (value)				3,631
Stock-based compensation expense (value)				6,950
Net Income	154,984				154,984
Dividends (value)					(38,128)
Purchase of treasury shares						(34,371)
Balance, end of year (value) at Jun. 30, 2012	(343,956)					(343,956)
Balance, end of year (value) at Jun. 30, 2012	$ 983,056		$ 1,015	$ 381,919	$ 944,078
Shares, end of year at Jun. 30, 2012			101,482,461