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Long Term Debt (Current & Noncurrent Breakout) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Debt Disclosure Current [Abstract]    
Long-term debt $ 599,386 $ 620,705
Less current portion 21,369 17,407
Long-term debt, gross $ 620,755 $ 638,112