Leases Additional Lease Disclosure (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Lease, Payments	$ 7,346	$ 7,933
Finance Lease, Principal Payments	362	410
Finance leases, finance cash flows	652	648
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	2,932	37,205
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 0	$ 61
Operating Lease, Weighted Average Remaining Lease Term	7 years 7 months 6 days	8 years 2 months 12 days
Finance Lease, Weighted Average Remaining Lease Term	10 years 4 months 24 days	11 years 1 month 6 days
Operating Lease, Weighted Average Discount Rate, Percent	5.40%	5.30%
Finance Lease, Weighted Average Discount Rate, Percent	5.70%	6.10%