Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Assets and Liabilities on a Recurring Basis (Details)

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Fair Value - Assets and Liabilities on a Recurring Basis (Details) - Recurring - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Assets:    
Other long-term assets $ 4,466 $ 3,458
Total Assets 4,466 3,458
Liabilities:    
Long term debt 314,156 315,940
Interest rate swaps 2,736 1,985
Total Liabilities 322,358 328,934
Henderson    
Liabilities:    
Earnout 580 636
Dejana    
Liabilities:    
Earnout $ 4,886 $ 10,373