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Long Term Debt (Current & Noncurrent Breakout) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Debt Disclosure Current [Abstract]    
Long-term debt $ 564,937 $ 583,298
Less current portion 20,285 20,844
Long-term debt, gross $ 585,222 $ 604,142