Shareholders' Equity (Details) (USD $) In Thousands	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Components of comprehensive income (loss)
Net income	$ 26,382	$ 20,755
Other comprehensive income (loss):
Foreign currency translation adjustment	(3,042)	(1,797)
Unrealized (loss) gain on investment securities available for sale, net of income tax of $(82) and $25	(140)	45
Reclassification of pension and postemployment expense into income, net of income tax of $180 and $135	287	419
Cash flow hedging activity, net of income tax of $(426) in the quarter ended 9/30/10		(1,030)
Reclassification of interest expense into income, net of income tax of $116 in the quarter ended 9/30/10		200
Total comprehensive income	$ 23,487	$ 18,592