Consolidated Statements of Shareholders' Equity (USD $) In Thousands	Total	Common Stock $1 par value [Member]	Class B Stock $1 par value [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Common stock [Member]	Common stock [Member] Retained Earnings [Member]	Class B stock [Member]	Class B stock [Member] Retained Earnings [Member]
Balance at Jun. 30, 2008	$ 787,855	$ 36,295	$ 9,181	$ 52,693	$ 701,205	$ (11,519)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	(107,084)				(107,084)
Other comprehensive income (loss), net	(20,109)					(20,109)
Total comprehensive income (loss)	(127,193)
Share-based incentive plan transactions	4,278	472		3,806
Purchases of Company stock	(21,801)	(879)	(2)	(12,287)	(8,633)
Share-based compensation	10,220			10,220
Conversion of Class B to common stock	0	46	(46)
Dividends paid							(31,675)	(31,675)	(8,055)	(8,055)
Tax benefit from incentive plans	(494)			(494)
Adoption of EITF 06-10, net of taxes (EITF 06-4 [Member])	(2,637)				(2,637)
Adoption of SFAS 158, net of tax (FAS 158 [Member])	(1,115)				(1,115)
Balance at Jun. 30, 2009	609,383	35,934	9,133	53,938	542,006	(31,628)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	103,963				103,963
Other comprehensive income (loss), net	3,623					3,623
Total comprehensive income (loss)	107,586
Share-based incentive plan transactions	9,573	536		(9,037)
Purchases of Company stock	(6,274)	(187)	(1)	(6,086)	0
Share-based compensation	10,836			10,836
Conversion of Class B to common stock	0	46	(46)
Dividends paid							(33,056)	(33,056)	(8,289)	(8,289)
Tax benefit from incentive plans	(1,414)			(1,414)
Balance at Jun. 30, 2010	688,345	36,329	9,086	66,311	604,624	(28,005)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	127,432				127,432
Other comprehensive income (loss), net	11,842					11,842
Total comprehensive income (loss)	139,274
Share-based incentive plan transactions	8,676	410		8,266
Purchases of Company stock	(24,895)	(744)	(23)	(24,128)	0
Share-based compensation	8,940			8,940
Conversion of Class B to common stock	0	287	(287)
Dividends paid							(35,597)	(35,597)	(8,643)	(8,643)
Tax benefit from incentive plans	(1,115)			(1,115)
Balance at Jun. 30, 2011	$ 774,985	$ 36,282	$ 8,776	$ 58,274	$ 687,816	$ (16,163)