LONG-TERM DEBT OBLIGATIONS, Convertible Senior Notes (Details) (USD $)		0 Months Ended	9 Months Ended		3 Months Ended
	Jun. 25, 2012	Jul. 25, 2012 4.00% Convertible Senior Notes	Sep. 30, 2013 4.00% Convertible Senior Notes	Jun. 25, 2012 4.00% Convertible Senior Notes	Mar. 31, 2012 3.50% Senior Convertible Notes
Debt Instrument [Line Items]
Senior Notes			$ 105,000,000	$ 105,000,000
Debt Instrument, Interest Rate, Stated Percentage			4.00%	4.00%	3.50%
Debt issuance costs				3,900,000
Net proceeds from 4.00% convertible senior notes				101,100,000
Amortization period for debt issuance cost related to convertible notes				7 years
Debt Instrument, Convertible, Shares per $1,000 principal amount of 4.00% Convertible Senior Notes		170.0319
Maximum number of shares upon conversion of the 4.00% Notes				17,857,143
Aggregate principal amount of senior convertible notes repurchased	1,000
Conversion price of convertible debt	$ 5.88
Percentage of common stock above conversion price (in hundredths)				130.00%
Number of consecutive trading days within measurement period				20 days
Number of consecutive trading days on which trading price is examined for triggering of conversion				30 days
Number of trading days to trigger measurement period within date company provides notice of redemption				5 days
Percentage of Principal Amount That The Redemption Price Will Be Equal To				100.00%
Debt Instrument, 4.00% Convertible, Interest Expense			3,600,000
Repurchase of Convertible Debt, including accrued interest					3,900,000
Debt Instrument, 3.50% Convertible, Interest Expense Paid With Repurchase					$ 100,000