Comprehensive Income (Schedule Of Comprehensive Income) (Details) (USD $)	3 Months Ended				6 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2011		Dec. 31, 2010
Comprehensive Income [Abstract]
Net income	$ 12,940,000		$ 16,832,000		$ 22,501,000		$ 34,623,000
Unrealized (loss) gain on derivative instruments	72,000	[1]	(1,460,000)	[1]	(1,125,000)	[1]	3,661,000	[1]
Foreign currency translation	(11,948,000)		1,068,000		(44,171,000)		32,706,000
Comprehensive income (loss)	1,064,000		16,440,000		(22,795,000)		70,990,000
Unrealized (loss) gain on derivative instruments, taxes	$ 0		$ (400,000)		$ (400,000)		$ 900,000

[1] The unrealized (loss) gain on derivative instruments is net of $0.0 million and $(0.4) million of taxes for the three and six months ended December 31, 2011, respectively; and net of $(0.4) and $0.9 million of taxes for the three and six months ended December 31, 2010, respectively.