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Loans and Allowance for Credit Losses - Loan Balances by Year of Origination and Internally Assigned Risk Rating (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Total Loan Balance |  |  |
Current fiscal year | $ 217,628 |  | $ 1,271,764
Year two | 1,274,343 |  | 1,214,107
Year three | 1,192,510 |  | 586,544
Year four | 561,326 |  | 725,517
Year five | 710,480 |  | 449,759
More than five years | 1,898,077 |  | 1,528,088
Revolving | 1,370,146 |  | 1,381,517
Revolving-Term | 26,554 |  | 26,673
Total | 7,251,064 |  | 7,183,969
Current Period Gross Charge-offs |  |  |
2023 | 189 |  |
2022 | 76 |  |
2021 | 103 |  |
2020 | 3 |  |
2019 | 3,499 |  |
2018 and Prior | 475 |  |
Revolving | 25 |  |
Revolving-Term | 89 |  |
Total | 4,459 | $ 982 |
Pass |  |  |
Total Loan Balance |  |  |
Current fiscal year | 217,628 |  | 1,271,177
Year two | 1,269,599 |  | 1,177,280
Year three | 1,160,139 |  | 581,879
Year four | 553,664 |  | 677,616
Year five | 650,630 |  | 406,053
More than five years | 1,637,906 |  | 1,313,942
Revolving | 1,318,455 |  | 1,348,200
Revolving-Term | 23,411 |  | 23,596
Total | 6,831,432 |  | 6,799,743
Special mention |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 4,325 |  | 36,547
Year three | 32,145 |  | 146
Year four | 3,152 |  | 26,394
Year five | 39,614 |  | 24,765
More than five years | 150,445 |  | 113,071
Revolving | 31,969 |  | 20,073
Revolving-Term | 95 |  | 95
Total | 261,745 |  | 221,091
Substandard |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 587
Year two | 419 |  | 280
Year three | 226 |  | 4,519
Year four | 4,510 |  | 21,507
Year five | 20,236 |  | 18,941
More than five years | 107,983 |  | 101,043
Revolving | 17,263 |  | 13,244
Revolving-Term | 3,048 |  | 2,982
Total | 153,685 |  | 163,103
Doubtful |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
More than five years | 1,743 |  | 32
Revolving | 2,459 |  | 0
Revolving-Term | 0 |  | 0
Total | 4,202 |  | 32
Commercial Loans | Commercial real estate |  |  |
Total Loan Balance |  |  |
Current fiscal year | 59,710 |  | 292,732
Year two | 264,611 |  | 360,423
Year three | 379,447 |  | 269,049
Year four | 260,669 |  | 449,493
Year five | 447,544 |  | 261,941
More than five years | 1,090,170 |  | 883,535
Revolving | 21,283 |  | 21,666
Revolving-Term | 0 |  | 0
Total | 2,523,434 |  | 2,538,839
Current Period Gross Charge-offs |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
2018 and Prior | 0 |  |
Revolving | 0 |  |
Revolving-Term | 0 |  |
Total | 0 | 0 |
Commercial Loans | Commercial and industrial |  |  |
Total Loan Balance |  |  |
Current fiscal year | 27,936 |  | 253,696
Year two | 254,391 |  | 289,448
Year three | 266,690 |  | 88,544
Year four | 84,058 |  | 73,998
Year five | 68,548 |  | 65,911
More than five years | 206,540 |  | 147,273
Revolving | 585,356 |  | 591,522
Revolving-Term | 0 |  | 0
Total | 1,493,519 |  | 1,510,392
Current Period Gross Charge-offs |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 3,412 |  |
2018 and Prior | 0 |  |
Revolving | 0 |  |
Revolving-Term | 0 |  |
Total | 3,412 | 0 |
Commercial Loans | Commercial construction |  |  |
Total Loan Balance |  |  |
Current fiscal year | 5,249 |  | 120,655
Year two | 142,639 |  | 170,691
Year three | 159,422 |  | 40,762
Year four | 25,115 |  | 14,442
Year five | 11,856 |  | 3,953
More than five years | 6,589 |  | 4,176
Revolving | 25,985 |  | 27,284
Revolving-Term | 0 |  | 0
Total | 376,855 |  | 381,963
Current Period Gross Charge-offs |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
2018 and Prior | 0 |  |
Revolving | 0 |  |
Revolving-Term | 0 |  |
Total | 0 | 0 |
Commercial Loans | Business banking |  |  |
Total Loan Balance |  |  |
Current fiscal year | 68,827 |  | 287,679
Year two | 282,559 |  | 233,723
Year three | 230,679 |  | 91,149
Year four | 95,954 |  | 109,731
Year five | 107,457 |  | 84,889
More than five years | 369,624 |  | 292,211
Revolving | 105,467 |  | 105,271
Revolving-Term | 1,275 |  | 1,291
Total | 1,261,842 |  | 1,205,944
Current Period Gross Charge-offs |  |  |
2023 | 0 |  |
2022 | 67 |  |
2021 | 43 |  |
2020 | 0 |  |
2019 | 70 |  |
2018 and Prior | 447 |  |
Revolving | 25 |  |
Revolving-Term | 0 |  |
Total | 652 | 606 |
Commercial Loans | Pass | Commercial real estate |  |  |
Total Loan Balance |  |  |
Current fiscal year | 59,710 |  | 292,732
Year two | 264,611 |  | 360,423
Year three | 379,447 |  | 267,743
Year four | 258,879 |  | 422,872
Year five | 409,858 |  | 227,006
More than five years | 873,354 |  | 704,600
Revolving | 21,283 |  | 21,666
Revolving-Term | 0 |  | 0
Total | 2,267,142 |  | 2,297,042
Commercial Loans | Pass | Commercial and industrial |  |  |
Total Loan Balance |  |  |
Current fiscal year | 27,936 |  | 253,324
Year two | 249,713 |  | 264,012
Year three | 241,929 |  | 88,544
Year four | 81,722 |  | 63,190
Year five | 58,291 |  | 62,874
More than five years | 193,317 |  | 138,250
Revolving | 535,107 |  | 559,777
Revolving-Term | 0 |  | 0
Total | 1,388,015 |  | 1,429,971
Commercial Loans | Pass | Commercial construction |  |  |
Total Loan Balance |  |  |
Current fiscal year | 5,249 |  | 120,655
Year two | 142,639 |  | 159,737
Year three | 153,978 |  | 40,762
Year four | 25,115 |  | 6,338
Year five | 3,703 |  | 3,953
More than five years | 4,728 |  | 2,297
Revolving | 25,985 |  | 27,284
Revolving-Term | 0 |  | 0
Total | 361,397 |  | 361,026
Commercial Loans | Pass | Business banking |  |  |
Total Loan Balance |  |  |
Current fiscal year | 68,827 |  | 287,520
Year two | 282,541 |  | 233,499
Year three | 228,739 |  | 87,926
Year four | 92,571 |  | 107,819
Year five | 104,156 |  | 80,549
More than five years | 351,271 |  | 276,843
Revolving | 104,495 |  | 104,354
Revolving-Term | 631 |  | 645
Total | 1,233,231 |  | 1,179,155
Commercial Loans | Special mention | Commercial real estate |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 497 |  | 13,187
Year five | 26,721 |  | 20,090
More than five years | 135,007 |  | 101,112
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | 162,225 |  | 134,389
Commercial Loans | Special mention | Commercial and industrial |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 4,325 |  | 25,436
Year three | 24,761 |  | 0
Year four | 2,336 |  | 5,103
Year five | 4,740 |  | 1,885
More than five years | 8,156 |  | 7,132
Revolving | 31,111 |  | 19,280
Revolving-Term | 0 |  | 0
Total | 75,429 |  | 58,836
Commercial Loans | Special mention | Commercial construction |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 10,954
Year three | 5,444 |  | 0
Year four | 0 |  | 8,104
Year five | 8,153 |  | 0
More than five years | 0 |  | 0
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | 13,597 |  | 19,058
Commercial Loans | Special mention | Business banking |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 157
Year three | 1,940 |  | 146
Year four | 319 |  | 0
Year five | 0 |  | 2,790
More than five years | 6,415 |  | 3,945
Revolving | 858 |  | 793
Revolving-Term | 95 |  | 95
Total | 9,627 |  | 7,926
Commercial Loans | Substandard | Commercial real estate |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 1,306
Year four | 1,293 |  | 13,434
Year five | 10,965 |  | 14,845
More than five years | 81,391 |  | 77,823
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | 93,649 |  | 107,408
Commercial Loans | Substandard | Commercial and industrial |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 372
Year two | 353 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 5,705
Year five | 5,517 |  | 1,152
More than five years | 3,742 |  | 1,891
Revolving | 16,679 |  | 12,465
Revolving-Term | 0 |  | 0
Total | 26,291 |  | 21,585
Commercial Loans | Substandard | Commercial construction |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
More than five years | 1,861 |  | 1,879
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | 1,861 |  | 1,879
Commercial Loans | Substandard | Business banking |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 159
Year two | 18 |  | 67
Year three |  |  | 3,077
Year four | 3,064 |  | 1,912
Year five | 3,301 |  | 1,550
More than five years | 11,938 |  | 11,391
Revolving | 114 |  | 124
Revolving-Term | 549 |  | 551
Total | 18,984 |  | 18,831
Commercial Loans | Doubtful | Commercial real estate |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
More than five years | 418 |  | 0
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | 418 |  | 0
Commercial Loans | Doubtful | Commercial and industrial |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
More than five years | 1,325 |  | 0
Revolving | 2,459 |  | 0
Revolving-Term | 0 |  | 0
Total | 3,784 |  | 0
Commercial Loans | Doubtful | Commercial construction |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
More than five years | 0 |  | 0
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | 0 |  | 0
Commercial Loans | Doubtful | Business banking |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
More than five years | 0 |  | 32
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | 0 |  | 32
Consumer Loans | Consumer real estate |  |  |
Total Loan Balance |  |  |
Current fiscal year | 51,356 |  | 296,948
Year two | 313,616 |  | 149,003
Year three | 146,669 |  | 91,613
Year four | 90,738 |  | 74,583
Year five | 72,474 |  | 32,031
More than five years | 223,812 |  | 200,169
Revolving | 553,379 |  | 553,649
Revolving-Term | 23,531 |  | 23,957
Total | 1,475,575 |  | 1,421,953
Current Period Gross Charge-offs |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 3 |  |
2019 | 0 |  |
2018 and Prior | 25 |  |
Revolving | 0 |  |
Revolving-Term | 49 |  |
Total | 77 | 78 |
Consumer Loans | Other consumer |  |  |
Total Loan Balance |  |  |
Current fiscal year | 4,550 |  | 20,054
Year two | 16,527 |  | 10,819
Year three | 9,603 |  | 5,427
Year four | 4,792 |  | 3,270
Year five | 2,601 |  | 1,034
More than five years | 1,342 |  | 724
Revolving | 78,676 |  | 82,125
Revolving-Term | 1,748 |  | 1,425
Total | 119,839 |  | 124,878
Current Period Gross Charge-offs |  |  |
2023 | 189 |  |
2022 | 9 |  |
2021 | 60 |  |
2020 | 0 |  |
2019 | 17 |  |
2018 and Prior | 3 |  |
Revolving | 0 |  |
Revolving-Term | 40 |  |
Total | 318 | $ 298 |
Consumer Loans | Pass | Consumer real estate |  |  |
Total Loan Balance |  |  |
Current fiscal year | 51,356 |  | 296,900
Year two | 313,568 |  | 148,790
Year three | 146,465 |  | 91,477
Year four | 90,586 |  | 74,155
Year five | 72,047 |  | 30,658
More than five years | 213,915 |  | 191,228
Revolving | 552,909 |  | 552,994
Revolving-Term | 21,043 |  | 21,547
Total | 1,461,889 |  | 1,407,749
Consumer Loans | Pass | Other consumer |  |  |
Total Loan Balance |  |  |
Current fiscal year | 4,550 |  | 20,046
Year two | 16,527 |  | 10,819
Year three | 9,581 |  | 5,427
Year four | 4,791 |  | 3,242
Year five | 2,575 |  | 1,013
More than five years | 1,321 |  | 724
Revolving | 78,676 |  | 82,125
Revolving-Term | 1,737 |  | 1,404
Total | 119,758 |  | 124,800
Consumer Loans | Special mention | Consumer real estate |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
More than five years | 867 |  | 882
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | 867 |  | 882
Consumer Loans | Special mention | Other consumer |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
More than five years | 0 |  | 0
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | 0 |  | 0
Consumer Loans | Substandard | Consumer real estate |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 48
Year two | 48 |  | 213
Year three | 204 |  | 136
Year four | 152 |  | 428
Year five | 427 |  | 1,373
More than five years | 9,030 |  | 8,059
Revolving | 470 |  | 655
Revolving-Term | 2,488 |  | 2,410
Total | 12,819 |  | 13,322
Consumer Loans | Substandard | Other consumer |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 8
Year two | 0 |  | 0
Year three | 22 |  | 0
Year four | 1 |  | 28
Year five | 26 |  | 21
More than five years | 21 |  | 0
Revolving | 0 |  | 0
Revolving-Term | 11 |  | 21
Total | 81 |  | 78
Consumer Loans | Doubtful | Consumer real estate |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
More than five years | 0 |  | 0
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | 0 |  | 0
Consumer Loans | Doubtful | Other consumer |  |  |
Total Loan Balance |  |  |
Current fiscal year | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
More than five years | 0 |  | 0
Revolving | 0 |  | 0
Revolving-Term | 0 |  | 0
Total | $ 0 |  | $ 0

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 + Details
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