Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2012		Dec. 31, 2011
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 44,809		$ 42,371		$ 46,993		$ 51,603
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(153)	[1]	644	[1]	1,069	[1]	(5,637)	[1]
Net unrealized cash flow hedging gain (loss)	689	[2]	(656)	[2]	18	[2]	2,032	[2]
Total other comprehensive income (loss), net of tax	536		(12)		1,087		(3,605)
Comprehensive income	45,345		42,359		48,080		47,998
Net unrealized cash flow hedging (loss) gain, tax expense (benefit)	$ 121		$ (212)		$ (58)		$ 686

[1] Foreign currency translation adjustments are not adjusted for income taxes since they relate to indefinite investments in non-U.S. subsidiaries.

[2] Net of tax expense of $121 for the three months ended December 31, 2012 and net of tax benefit of $212 for the three months ended December 31, 2011. Net of tax benefit of $58 for the six months ended December 31, 2012 and net of tax expense of $686 for the six months ended December 31, 2011.