Leases Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating Lease, Cost	$ 7,870	$ 6,380
Short-term, variable and other lease costs	1,540	1,140
Lease, Cost	$ 9,410	$ 7,520	$ 5,800