Allowance for Credit Losses and Credit Quality of Loans, Past Due Loans (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) Relationship	Dec. 31, 2021 USD ($) Relationship
Allowance for Credit Losses and Credit Quality of Loans [Abstract]
Individually evaluated loans, number of relationships | Relationship	4	5
Individually evaluated loans, amortized cost	$ 4,300	$ 10,200
Individually evaluated loans, allowance for credit losses	$ 0	0
Individually evaluated loans, number of relationships resolved | Relationship	1
Individually evaluated loans, allowance for credit losses reversed	$ 800
Past Due and Nonperforming Loans [Abstract]
Nonaccrual	19,098	30,285
Recorded total loans	7,904,784	7,498,459
Loans in non-accrual without an allowance for credit losses	0	0
Past Due [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	23,346	21,395
31-60 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	16,801	15,022
61-90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	3,813	3,915
Greater Than 90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	2,732	2,458
Current [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	7,862,340	7,446,779
C&I [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	1,236,636	1,130,670
CRE [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	2,610,691	2,564,987
PPP [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	3,328	101,222
Auto [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	923,945	826,508
Other Consumer [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	1,039,876	839,390
Commercial Loans [Member]
Past Due and Nonperforming Loans [Abstract]
Nonaccrual	9,790	16,344
Recorded total loans	3,850,655	3,796,879
Commercial Loans [Member] | Past Due [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	688	1,973
Commercial Loans [Member] | 31-60 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	416	1,841
Commercial Loans [Member] | 61-90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	272	132
Commercial Loans [Member] | Greater Than 90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	0	0
Commercial Loans [Member] | Current [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	3,840,177	3,778,562
Commercial Loans [Member] | C&I [Member]
Past Due and Nonperforming Loans [Abstract]
Nonaccrual	3,951	3,618
Recorded total loans	1,236,636	1,130,670
Commercial Loans [Member] | C&I [Member] | Past Due [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	628	622
Commercial Loans [Member] | C&I [Member] | 31-60 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	356	622
Commercial Loans [Member] | C&I [Member] | 61-90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	272	0
Commercial Loans [Member] | C&I [Member] | Greater Than 90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	0	0
Commercial Loans [Member] | C&I [Member] | Current [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	1,232,057	1,126,430
Commercial Loans [Member] | CRE [Member]
Past Due and Nonperforming Loans [Abstract]
Nonaccrual	5,839	12,726
Recorded total loans	2,610,691	2,564,987
Commercial Loans [Member] | CRE [Member] | Past Due [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	0	1,351
Commercial Loans [Member] | CRE [Member] | 31-60 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	0	1,219
Commercial Loans [Member] | CRE [Member] | 61-90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	0	132
Commercial Loans [Member] | CRE [Member] | Greater Than 90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	0	0
Commercial Loans [Member] | CRE [Member] | Current [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	2,604,852	2,550,910
Commercial Loans [Member] | PPP [Member]
Past Due and Nonperforming Loans [Abstract]
Nonaccrual	0	0
Recorded total loans	3,328	101,222
Commercial Loans [Member] | PPP [Member] | Past Due [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	60	0
Commercial Loans [Member] | PPP [Member] | 31-60 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	60	0
Commercial Loans [Member] | PPP [Member] | 61-90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	0	0
Commercial Loans [Member] | PPP [Member] | Greater Than 90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	0	0
Commercial Loans [Member] | PPP [Member] | Current [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	3,268	101,222
Consumer Loans [Member]
Past Due and Nonperforming Loans [Abstract]
Nonaccrual	1,756	1,528
Recorded total loans	1,963,821	1,665,898
Consumer Loans [Member] | Past Due [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	17,902	15,713
Consumer Loans [Member] | 31-60 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	13,203	10,700
Consumer Loans [Member] | 61-90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	3,151	3,363
Consumer Loans [Member] | Greater Than 90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	1,548	1,650
Consumer Loans [Member] | Current [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	1,944,163	1,648,657
Consumer Loans [Member] | Auto [Member]
Past Due and Nonperforming Loans [Abstract]
Nonaccrual	1,399	1,295
Recorded total loans	923,945	826,508
Consumer Loans [Member] | Auto [Member] | Past Due [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	9,478	9,003
Consumer Loans [Member] | Auto [Member] | 31-60 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	7,969	6,911
Consumer Loans [Member] | Auto [Member] | 61-90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	1,047	1,547
Consumer Loans [Member] | Auto [Member] | Greater Than 90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	462	545
Consumer Loans [Member] | Auto [Member] | Current [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	913,068	816,210
Consumer Loans [Member] | Other Consumer [Member]
Past Due and Nonperforming Loans [Abstract]
Nonaccrual	357	233
Recorded total loans	1,039,876	839,390
Consumer Loans [Member] | Other Consumer [Member] | Past Due [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	8,424	6,710
Consumer Loans [Member] | Other Consumer [Member] | 31-60 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	5,234	3,789
Consumer Loans [Member] | Other Consumer [Member] | 61-90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	2,104	1,816
Consumer Loans [Member] | Other Consumer [Member] | Greater Than 90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	1,086	1,105
Consumer Loans [Member] | Other Consumer [Member] | Current [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	1,031,095	832,447
Residential [Member]
Past Due and Nonperforming Loans [Abstract]
Nonaccrual	7,552	12,413
Recorded total loans	2,090,308	2,035,682
Residential [Member] | Past Due [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	4,756	3,709
Residential [Member] | 31-60 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	3,182	2,481
Residential [Member] | 61-90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	390	420
Residential [Member] | Greater Than 90 Days Past Due Accruing [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	1,184	808
Residential [Member] | Current [Member]
Past Due and Nonperforming Loans [Abstract]
Recorded total loans	$ 2,078,000	$ 2,019,560