FINANCING ARRANGEMENTS (Details 4) (USD $)	Jun. 30, 2014	Jun. 30, 2013	Jul. 31, 2009
Debt Instrument [Line Items]
Net carrying amount of convertible debt	$ 293,503,000	$ 174,770,000
Convertible senior notes
Debt Instrument [Line Items]
Principal amount on the convertible senior notes	172,500,000	172,500,000	172,500,000.0
Unamortized debt discount	(254,000)	(6,046,000)	(24,700,000)
Net carrying amount of convertible debt	$ 172,246,000	$ 166,454,000