Operating Leases Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 52,291	$ 18,415
Operating Lease, Liability	52,474	$ 18,415
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	33,900
Operating Lease, Cost	6,100
Increase in Operating leases due to new leases	40,200
Operating Lease, Right-of-Use Asset, Amortization Expense	6,300
Lease Obligation Incurred	$ 34,100