Loans, Analysis of Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Allowance for Credit Losses [Abstract]
Period of reasonable and supportable forecast				12 months
Provision expense (credit)	$ (4,257)	$ (2,500)	$ (49)	$ (6,756)	$ 12,658	$ 16,047
Allowance for credit losses to nonperforming loans	197.20%	215.50%	129.00%	197.20%	129.00%
Credit loss reserve as percentage of total loans outstanding	1.21%	1.28%	1.32%	1.21%	1.32%
Credit loss reserve as percentage of total loans outstanding excluding PPP loans	1.27%	1.38%	1.43%	1.27%	1.43%
Consumer [Member] | Consumer Indirect [Member]
Allowance for Credit Losses [Abstract]
Provision expense (credit)	$ (1,102)		$ 428	$ (3,381)	$ 3,005	$ 4,079