Comprehensive Income (Schedule Of Comprehensive Income) (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	$ 29,524,000	$ 22,869,000	$ 65,931,000	$ 45,370,000
Unrealized (loss) gain on derivative instruments	(1,067,000)	(245,000)	(1,117,000)	(1,370,000)
Foreign currency translation	(15,339,000)	13,557,000	4,861,000	(30,614,000)
Comprehensive income (loss)	13,118,000	36,181,000	69,675,000	13,386,000
Unrealized (loss) gain on derivative instruments, taxes	$ 700,000	$ 100,000	$ 700,000	$ 500,000