Debt (Tables)

9 Months Ended

Mar. 31, 2012

Debt [Abstract]

Schedule Of Principal Amounts, Unamortized Discount And Net Carrying Amounts Of Liability Components And Equity Components For Convertible Senior Notes

	Principal Balance		Unamortized Discount			Net Carrying Amount		Equity Component
March 31, 2012	$	400,000	$	(9,132	)	$	390,868	$	48,323
June 30, 2011	$	400,000	$	(21,599	)	$	378,401	$	48,323