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v3.23.3

Allowance for Credit Losses and Credit Quality of Loans, Past Due Loans (Details) $ in Thousands | Sep. 30, 2023 USD ($) Relationship | Dec. 31, 2022 USD ($) Relationship
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Allowance for Credit Losses and Credit Quality of Loans [Abstract] |  |
Individually evaluated loans, number of relationships | Relationship | 1 | 2
Individually evaluated loans, amortized cost | $ 1,900 | $ 2,400
Individually evaluated loans, allowance for credit losses | 0 | 0
Past Due and Nonperforming Loans [Abstract] |  |
Nonaccrual | 20,736 | 17,233
Recorded total loans | 9,667,375 | 8,150,147
Loans in non-accrual without an allowance for credit losses | 1,900 | 1,100
Past Due [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 47,299 | 26,690
31-60 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 39,490 | 18,155
61-90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 4,281 | 4,712
Greater Than 90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 3,528 | 3,823
Current [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 9,599,340 | 8,106,224
C&I [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 1,460,830 | 1,241,157
CRE [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 3,399,471 | 2,695,408
Auto [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 1,069,096 | 962,701
Residential Solar [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 934,082 | 856,798
Other Consumer [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 192,204 | 279,588
Commercial Loans [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Nonaccrual | 8,413 | 8,024
Recorded total loans | 4,860,301 | 3,936,565
Commercial Loans [Member] | Past Due [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 20,515 | 877
Commercial Loans [Member] | 31-60 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 20,398 | 678
Commercial Loans [Member] | 61-90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 117 | 195
Commercial Loans [Member] | Greater Than 90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 0 | 4
Commercial Loans [Member] | Current [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 4,831,373 | 3,927,664
Commercial Loans [Member] | C&I [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Nonaccrual | 3,753 | 2,244
Recorded total loans | 1,460,830 | 1,241,157
Commercial Loans [Member] | C&I [Member] | Past Due [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 836 | 445
Commercial Loans [Member] | C&I [Member] | 31-60 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 737 | 342
Commercial Loans [Member] | C&I [Member] | 61-90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 99 | 99
Commercial Loans [Member] | C&I [Member] | Greater Than 90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 0 | 4
Commercial Loans [Member] | C&I [Member] | Current [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 1,456,241 | 1,238,468
Commercial Loans [Member] | CRE [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Nonaccrual | 4,660 | 5,780
Recorded total loans | 3,399,471 | 2,695,408
Commercial Loans [Member] | CRE [Member] | Past Due [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 19,679 | 432
Commercial Loans [Member] | CRE [Member] | 31-60 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 19,661 | 336
Commercial Loans [Member] | CRE [Member] | 61-90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 18 | 96
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 | 3,375,132 | 2,689,196
Consumer Loans [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Nonaccrual | 2,427 | 1,667
Recorded total loans | 2,195,382 | 2,099,087
Consumer Loans [Member] | Past Due [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 21,371 | 21,991
Consumer Loans [Member] | 31-60 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 15,017 | 14,981
Consumer Loans [Member] | 61-90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 3,838 | 3,962
Consumer Loans [Member] | Greater Than 90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 2,516 | 3,048
Consumer Loans [Member] | Current [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 2,171,584 | 2,075,429
Consumer Loans [Member] | Auto [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Nonaccrual | 1,652 | 1,494
Recorded total loans | 1,069,096 | 962,701
Consumer Loans [Member] | Auto [Member] | Past Due [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 10,890 | 10,818
Consumer Loans [Member] | Auto [Member] | 31-60 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 8,974 | 8,640
Consumer Loans [Member] | Auto [Member] | 61-90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 1,402 | 1,393
Consumer Loans [Member] | Auto [Member] | Greater Than 90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 514 | 785
Consumer Loans [Member] | Auto [Member] | Current [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 1,056,554 | 950,389
Consumer Loans [Member] | Residential Solar [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Nonaccrual | 373 | 79
Recorded total loans | 934,082 | 856,798
Consumer Loans [Member] | Residential Solar [Member] | Past Due [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 4,893 | 4,063
Consumer Loans [Member] | Residential Solar [Member] | 31-60 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 3,449 | 2,858
Consumer Loans [Member] | Residential Solar [Member] | 61-90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 938 | 731
Consumer Loans [Member] | Residential Solar [Member] | Greater Than 90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 506 | 474
Consumer Loans [Member] | Residential Solar [Member] | Current [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 928,816 | 852,656
Consumer Loans [Member] | Other Consumer [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Nonaccrual | 402 | 94
Recorded total loans | 192,204 | 279,588
Consumer Loans [Member] | Other Consumer [Member] | Past Due [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 5,588 | 7,110
Consumer Loans [Member] | Other Consumer [Member] | 31-60 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 2,594 | 3,483
Consumer Loans [Member] | Other Consumer [Member] | 61-90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 1,498 | 1,838
Consumer Loans [Member] | Other Consumer [Member] | Greater Than 90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 1,496 | 1,789
Consumer Loans [Member] | Other Consumer [Member] | Current [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 186,214 | 272,384
Residential [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Nonaccrual | 9,896 | 7,542
Recorded total loans | 2,611,692 | 2,114,495
Residential [Member] | Past Due [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 5,413 | 3,822
Residential [Member] | 31-60 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 4,075 | 2,496
Residential [Member] | 61-90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 326 | 555
Residential [Member] | Greater Than 90 Days Past Due Accruing [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | 1,012 | 771
Residential [Member] | Current [Member] |  |
Past Due and Nonperforming Loans [Abstract] |  |
Recorded total loans | $ 2,596,383 | $ 2,103,131

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