Allowance for Credit Losses and Credit Quality of Loans, Allowance for Loan Losses by Portfolio Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Activity in allowance for credit losses by portfolio segment [Roll Forward]
Balance, beginning of period	$ 92,000	$ 110,000	$ 75,999
Charge-offs	(18,643)	(20,106)	(27,078)
Recoveries	10,296	10,363	9,945
Provision	17,147	(8,257)	51,134
Balance, end of period	100,800	92,000	110,000
Commercial Loans [Member]
Activity in allowance for credit losses by portfolio segment [Roll Forward]
Balance, beginning of period	28,941	50,942	27,156
Charge-offs	(1,870)	(4,638)	(4,005)
Recoveries	2,430	723	786
Provision	5,221	(18,086)	27,005
Balance, end of period	34,722	28,941	50,942
Consumer Loans [Member]
Activity in allowance for credit losses by portfolio segment [Roll Forward]
Balance, beginning of period	44,253	37,803	32,122
Charge-offs	(16,140)	(14,489)	(21,938)
Recoveries	7,014	8,571	8,541
Provision	15,824	12,368	19,078
Balance, end of period	50,951	44,253	37,803
Residential [Member]
Activity in allowance for credit losses by portfolio segment [Roll Forward]
Balance, beginning of period	18,806	21,255	16,721
Charge-offs	(633)	(979)	(1,135)
Recoveries	852	1,069	618
Provision	(3,898)	(2,539)	5,051
Balance, end of period	$ 15,127	$ 18,806	$ 21,255