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INDEBTEDNESS (Schedule of Long-term Debt and Capital Lease Obligations) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Debt Disclosure [Abstract]    
Borrowings on credit facility   $ 270,139
Capital lease obligations 3,982 4,047
Subtotal 253,758 274,186
Less current portion (1,821) (1,719)
Total long-term debt and capital lease obligations $ 251,937 $ 272,467