Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss), foreign currency translation adjustments	$ (27,615,000)	$ 18,719,000	$ (34,414,000)	$ (10,737,000)
Accumulated other comprehensive income (loss), unrealized gain (loss) on derivative instruments	(1,524,000)	136,000	(7,020,000)	(131,000)
Accumulated other comprehensive income (loss)	(29,139,000)	18,855,000	(41,434,000)	(10,868,000)
Other comprehensive income (loss), foreign currency translation adjustments	(46,334,000)	53,133,000	(23,677,000)
Other comprehensive income (loss), unrealized gain (loss) on derivative instruments	(1,660,000)	7,156,000	(6,889,000)
Other comprehensive income (loss)	(47,994,000)	60,289,000	(30,566,000)
Unrealized gain (loss) on derivative instruments, tax	$ (800,000)	$ 500,000	$ (3,000,000)