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Debt Obligations - Current Maturities of Long-Term Debt and Short-Term Borrowings (Detail) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Short-term Debt [Abstract]    
Short-term borrowings   $ 4,829
Current maturities of long-term debt $ 5,061 2,238
Current maturities of long-term debt and short-term borrowings $ 5,061 $ 7,067