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Long-Term Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Long Term Debt [Line Items]    
Obligations under borrowing arrangements $ 116,764 $ 94,198
Less: Current portion of long-term debt and other current borrowings (67,651) (54,925)
Long-term debt $ 49,113 $ 39,273