FINANCING ARRANGEMENTS (Details 3) (USD $)	3 Months Ended	12 Months Ended				1 Months Ended	12 Months Ended		12 Months Ended		1 Months Ended		1 Months Ended			1 Months Ended
	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Private Shelf Agreement	Jul. 31, 2009 Convertible senior notes	Jun. 30, 2014 Convertible senior notes	Jun. 30, 2013 Convertible senior notes	Jun. 30, 2014 Revolving credit facility	Jun. 30, 2013 Revolving credit facility	Sep. 30, 2011 Equipment and leasehold notes payable	Jun. 30, 2014 Equipment and leasehold notes payable	Jul. 31, 2014 Subsequent Event Convertible senior notes	Jun. 30, 2014 Senior term notes	Jun. 30, 2013 Senior term notes	Nov. 30, 2013 Senior term notes Senior Unsecured Notes Due December 2017
Debt Instrument [Line Items]
Principal amount on the convertible senior notes						$ 172,500,000.0	$ 172,500,000	$ 172,500,000				$ 1,300,000				$ 120,000,000.0
Interest rate percentage						5.00%					4.90%			5.75%	0.00%	5.75%
Debt Instrument, Convertible, Conversion Ratio							0.0656019
Long-term debt conversion price (in dollars per share)							$ 15.24
Convertible long-term debt amount allocated to equity						24,700,000
Unamortized debt discount						24,700,000	254,000	6,046,000
Debt discount amortization period						5 years
Effective interest rate on the convertible debt (as a percent)						8.90%
Repayments of Debt													172,500,000
Proceeds from issuance of long-term debt, net of fees		118,058,000	0	0												118,100,000
Revolving credit facility maximum borrowing capacity									400,000,000.0
Variable interest rate basis									LIBOR
Maximum borrowing capacity, optional expansion									200,000,000.0
Threshold default of other debt to trigger event of default									10,000,000.0
Revolving credit facility outstanding amount									0	0
Outstanding standby letters of credit									2,200,000	2,200,000
Revolving credit facility remaining borrowing capacity									397,800,000	397,800,000
Debt instrument term											3 years
Capital lease amortization rate (as a percent)											9.20%
Gain (Loss) on Capital Leases Refinance											0
Prepayment of debt					89,300,000
Make-whole payments related to repayment of long-term debt	$ 6,700,000		$ 10,600,000		$ 10,600,000