Consolidated Statements Of Shareholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Jun. 30, 2008	$ 82,652	$ 941,244	$ (5,775)	$ (658,903)	$ 359,218
Balance, shares at Jun. 30, 2008	28,452,000
Net income		89,086			89,086
Net pension and postretirement benefit gains (losses), net of tax effect			(3,310)		(3,310)
Comprehensive Income					85,776
Cash dividends - common stock		(31,854)			(31,854)
Purchase of treasury stock				(16,894)	(16,894)
Purchase of treasury stock, shares	(496,000)
Stock-based plans	5,347				5,347
Stock-based plans, shares	146,000
Stock-based compensation expense	963				963
Balance at Jun. 30, 2009	88,962	998,476	(9,085)	(675,797)	402,556
Balance, shares at Jun. 30, 2009	28,102,000
Net income		114,969			114,969	[1]
Net pension and postretirement benefit gains (losses), net of tax effect			(712)		(712)
Comprehensive Income					114,257
Cash dividends - common stock		(33,430)			(33,430)
Purchase of treasury stock				(4,398)	(4,398)
Purchase of treasury stock, shares	(80,000)
Stock-based plans	4,274				4,274
Stock-based plans, shares	146,000
Stock-based compensation expense	1,649				1,649
Balance at Jun. 30, 2010	94,885	1,080,015	(9,797)	(680,195)	484,908
Balance, shares at Jun. 30, 2010	28,168,000				28,167,549
Net income		106,364			106,364	[1]
Net pension and postretirement benefit gains (losses), net of tax effect			2,754		2,754
Comprehensive Income					109,118
Cash dividends - common stock		(35,696)			(35,696)
Purchase of treasury stock				(43,103)	(43,103)
Purchase of treasury stock, shares	(810,000)
Stock-based plans	(4)				(4)
Stock-based plans, shares	28,000
Stock-based compensation expense	2,316				2,316
Balance at Jun. 30, 2011	$ 97,197	$ 1,150,683	$ (7,043)	$ (723,298)	$ 517,539
Balance, shares at Jun. 30, 2011	27,386,000				27,385,781

[1] Diluted earnings per share are calculated independently for each of the quarters presented. Accordingly, the sum of the quarterly earnings per share amounts may not agree with the fiscal year.