Leases Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Cost	$ 34,393	$ 33,891
Variable Lease, Cost	51	100
Short-term Lease, Cost	385	926
Sublease Income	(4,171)	(4,202)
Lease, Cost	$ 30,658	$ 30,715