Fair Value - Assets and Liabilities on a Recurring Basis (Details) - Recurring - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Assets:
Other long-term assets	$ 7,776	$ 7,270
Total Assets	7,776	7,270
Liabilities:
Interest rate swaps	14,772	6,736
Long term debt	267,001	247,630
Earnout- Dejana		2,000
Total Liabilities	$ 281,773	$ 256,383