Leases - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease costs	$ 16,331	$ 19,450
Amortization of ROU assets	3,149	1,825
Interest on lease liabilities	420	563
Total lease costs	$ 19,900	$ 21,838