Condensed Consolidated Statement Of Shareholders' Equity (USD $) In Thousands	Common Stock [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Non-Controlling Interests [Member]	Total
Retained Earnings, Balance at Jun. 30, 2011						$ 378,365
Non-Controlling Interest, Balance at Jun. 30, 2011						727
Balance, Value at Jun. 30, 2011	159,186	13,116	378,365	(28,293)	727	523,101
Balance, Shares at Jun. 30, 2011	69,077			(6,394)
Shares issued under share-based compensation plans, Shares	124
Shares issued under share-based compensation plans, Value	179					179
Share-based compensation expense	4,575					4,575
Net earnings			18,579		135	18,714
Treasury stock under deferred compensation arrangements, Value	1,966			(1,966)
Treasury stock under deferred compensation arrangements, Shares				(98)
Excess tax benefits from share-based compensation	45					45
Distribution of noncontrolling interests					(202)	(202)
Foreign currency translation adjustment		940				940
Balance, Value at Sep. 30, 2011	$ 165,951	$ 14,056	$ 396,944	$ (30,259)	$ 660	$ 547,352
Balance, shares at Sep. 30, 2011	69,201			(6,492)