Leases Operating Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 40,245		$ 40,245		$ 42,617
Operating Lease, Liability	$ 44,473		44,473		$ 46,819
Operating Lease, Cost			$ 1,190	$ 2,007
Operating Lease, Weighted Average Remaining Lease Term	14 years 4 months 9 days	15 years 1 month 6 days	14 years 4 months 9 days	15 years 1 month 6 days
Operating Lease, Weighted Average Discount Rate, Percent	3.34%	3.42%	3.34%	3.42%
Operating Leases, Rent Expense	$ 1,202	$ 1,545	$ 3,603	$ 4,281