Fair Value - Assets and Liabilities on a Recurring Basis (Details) - Recurring - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets:
Other long-term assets	$ 8,152	$ 7,270
Total Assets	8,152	7,270
Liabilities:
Interest rate swaps	14,099	6,736
Long term debt	267,187	247,630
Earnout- Dejana		2,000
Total Liabilities	$ 281,286	$ 256,383