Premises and Equipment Operating Lease Table (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lease Expense and Cash Flows [Abstract]
Operating Lease, Right-of-Use Asset	$ 42,617	$ 48,642
Operating Lease, Liability	46,819	52,894
Operating Lease, Cost	$ 5,930	$ 5,328
Operating Lease, Weighted Average Remaining Lease Term	14 years 9 months 29 days	15 years 3 months 7 days
Operating Lease, Weighted Average Discount Rate, Percent	3.42%	3.43%
Operating Leases, Rent Expense, Contingent Rentals	$ 5,979	$ 4,656