Leases Operating Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 43,180		$ 43,180		$ 48,642
Operating Lease, Liability	$ 47,791		47,791		$ 52,894
Operating Lease, Cost			$ 2,007	$ 3,351
Operating Lease, Weighted Average Remaining Lease Term	15 years 1 month 6 days		15 years 1 month 6 days		15 years 5 months 8 days
Operating Lease, Weighted Average Discount Rate, Percent	3.42%		3.42%		3.42%
Operating Leases, Rent Expense	$ 1,545	$ 1,275	$ 4,281	$ 3,959