Quarterly report pursuant to Section 13 or 15(d)

LONG-TERM DEBT (Schedule of Debt Interest Expense) (Details)

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LONG-TERM DEBT (Schedule of Debt Interest Expense) (Details) (2.5% Convertible Senior Notes Due 2019 [Member], USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2014
2.5% Convertible Senior Notes Due 2019 [Member]
 
Debt Instrument [Line Items]  
Contractual interest coupon $ 726
Amortization of debt discount 376
Amortization of debt issuance costs 118
Total interest cost recognized on the notes $ 1,220