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Portfolio Loans - Risk grades of portfolio loans, further sorted by origination year (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | $ 550,874 | $ 2,288,440
2023, charge-off | 0 |
2022 / 2021 | 2,086,300 | 1,926,481
2022, charge-off | 36 |
2021 / 2020 | 1,850,463 | 962,405
2021, charge-off | 502 |
2020 / 2019 | 925,814 | 558,294
2020, charge-off | 1 |
2019 / 2018 | 522,951 | 323,245
2019, charge-off | 0 |
Prior | 858,147 | 644,140
Prior, charge-off | 642 |
Revolving Loans | 989,259 | 1,022,697
Revolving Loans, charge-off | 0 |
Total | 7,783,808 | 7,725,702
Total, gross write-offs | 1,181 |
Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 6,995,343 | 6,964,678
Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 599,341 | 563,897
Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 86,525 | 91,405
Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 87,885 | 90,655
Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 14,714 | 15,067
Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 231,922 | 544,993
2023, charge-off | 0 |
2022 / 2021 | 373,443 | 320,898
2022, charge-off | 0 |
2021 / 2020 | 291,932 | 142,171
2021, charge-off | 400 |
2020 / 2019 | 135,332 | 67,027
2020, charge-off | 0 |
2019 / 2018 | 59,135 | 55,404
2019, charge-off | 0 |
Prior | 176,737 | 159,475
Prior, charge-off | 0 |
Revolving Loans | 668,657 | 684,186
Revolving Loans, charge-off | 0 |
Total | 1,937,158 | 1,974,154
Total, gross write-offs | 400 |
Commercial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 193,301 | 479,893
2022 / 2021 | 326,112 | 266,122
2021 / 2020 | 237,528 | 136,445
2020 / 2019 | 130,503 | 52,046
2019 / 2018 | 45,737 | 50,764
Prior | 152,200 | 135,000
Revolving Loans | 539,275 | 548,225
Total | 1,624,656 | 1,668,495
Commercial | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 19,141 | 54,195
2022 / 2021 | 44,289 | 49,382
2021 / 2020 | 47,474 | 3,288
2020 / 2019 | 2,758 | 7,201
2019 / 2018 | 6,384 | 1,258
Prior | 5,162 | 2,160
Revolving Loans | 83,405 | 84,274
Total | 208,613 | 201,758
Commercial | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 0 | 1,958
2022 / 2021 | 1,682 | 937
2021 / 2020 | 2,811 | 1,642
2020 / 2019 | 1,340 | 974
2019 / 2018 | 652 | 1,000
Prior | 17,343 | 17,024
Revolving Loans | 18,999 | 23,005
Total | 42,827 | 46,540
Commercial | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 19,386 | 8,926
2022 / 2021 | 1,360 | 1,165
2021 / 2020 | 1,143 | 570
2020 / 2019 | 526 | 6,671
2019 / 2018 | 6,229 | 2,382
Prior | 2,030 | 5,191
Revolving Loans | 24,978 | 26,282
Total | 55,652 | 51,187
Commercial | Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 94 | 21
2022 / 2021 | 0 | 3,292
2021 / 2020 | 2,976 | 226
2020 / 2019 | 205 | 135
2019 / 2018 | 133 | 0
Prior | 2 | 100
Revolving Loans | 2,000 | 2,400
Total | 5,410 | 6,174
Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 181,363 | 978,317
2023, charge-off | 0 |
2022 / 2021 | 962,101 | 898,122
2022, charge-off | 0 |
2021 / 2020 | 894,617 | 558,607
2021, charge-off | 0 |
2020 / 2019 | 533,230 | 397,516
2020, charge-off | 0 |
2019 / 2018 | 374,837 | 201,813
2019, charge-off | 0 |
Prior | 360,789 | 209,715
Prior, charge-off | 539 |
Revolving Loans | 17,599 | 17,783
Revolving Loans, charge-off | 0 |
Total | 3,324,536 | 3,261,873
Total, gross write-offs | 539 |
Commercial real estate | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 139,599 | 883,688
2022 / 2021 | 882,834 | 819,133
2021 / 2020 | 810,278 | 478,452
2020 / 2019 | 457,122 | 297,525
2019 / 2018 | 279,737 | 161,409
Prior | 306,763 | 198,419
Revolving Loans | 12,637 | 13,083
Total | 2,888,970 | 2,851,709
Commercial real estate | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 29,344 | 77,346
2022 / 2021 | 65,687 | 56,113
2021 / 2020 | 75,032 | 64,282
2020 / 2019 | 57,391 | 96,664
2019 / 2018 | 89,469 | 21,592
Prior | 40,302 | 5,758
Revolving Loans | 4,962 | 4,700
Total | 362,187 | 326,455
Commercial real estate | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 816 | 11,943
2022 / 2021 | 7,001 | 5,389
2021 / 2020 | 4,365 | 12,386
2020 / 2019 | 15,293 | 1,420
2019 / 2018 | 3,743 | 6,917
Prior | 11,977 | 5,471
Revolving Loans | 0 | 0
Total | 43,195 | 43,526
Commercial real estate | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 11,604 | 5,340
2022 / 2021 | 5,975 | 13,528
2021 / 2020 | 1,095 | 3,454
2020 / 2019 | 3,394 | 1,907
2019 / 2018 | 1,888 | 10,248
Prior | 667 | 62
Revolving Loans | 0 | 0
Total | 24,623 | 34,539
Commercial real estate | Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 0 | 0
2022 / 2021 | 604 | 3,959
2021 / 2020 | 3,847 | 33
2020 / 2019 | 30 | 0
2019 / 2018 | 0 | 1,647
Prior | 1,080 | 5
Revolving Loans | 0 | 0
Total | 5,561 | 5,644
Real estate construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 38,463 | 230,042
2023, charge-off | 0 |
2022 / 2021 | 229,378 | 203,743
2022, charge-off | 0 |
2021 / 2020 | 188,599 | 71,184
2021, charge-off | 0 |
2020 / 2019 | 72,844 | 1,539
2020, charge-off | 0 |
2019 / 2018 | 1,493 | 1,901
2019, charge-off | 0 |
Prior | 3,510 | 3,149
Prior, charge-off | 0 |
Revolving Loans | 19,722 | 18,911
Revolving Loans, charge-off | 0 |
Total | 554,009 | 530,469
Total, gross write-offs | 0 |
Real estate construction | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 38,451 | 219,112
2022 / 2021 | 219,520 | 191,724
2021 / 2020 | 179,369 | 68,015
2020 / 2019 | 69,767 | 1,490
2019 / 2018 | 1,447 | 1,901
Prior | 3,510 | 1,751
Revolving Loans | 19,722 | 18,911
Total | 531,786 | 502,904
Real estate construction | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 12 | 8,530
2022 / 2021 | 4,454 | 12,019
2021 / 2020 | 9,230 | 3,169
2020 / 2019 | 3,077 | 48
2019 / 2018 | 46 | 0
Prior | 0 | 1,398
Revolving Loans | 0 | 0
Total | 16,819 | 25,164
Real estate construction | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 |  | 0
2022 / 2021 |  | 0
2021 / 2020 |  | 0
2020 / 2019 |  | 1
2019 / 2018 |  | 0
Prior |  | 0
Revolving Loans |  | 0
Total | 0 | 1
Real estate construction | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 0 | 2,400
2022 / 2021 | 5,404 | 0
2021 / 2020 | 0 | 0
2020 / 2019 | 0 | 0
2019 / 2018 | 0 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Total | 5,404 | 2,400
Real estate construction | Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 0 | 0
Retail real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 63,491 | 400,507
2023, charge-off | 0 |
2022 / 2021 | 397,515 | 460,072
2022, charge-off | 0 |
2021 / 2020 | 443,066 | 177,299
2021, charge-off | 0 |
2020 / 2019 | 173,130 | 79,126
2020, charge-off | 0 |
2019 / 2018 | 76,905 | 58,481
2019, charge-off | 0 |
Prior | 312,833 | 270,808
Prior, charge-off | 5 |
Revolving Loans | 200,597 | 210,789
Revolving Loans, charge-off | 0 |
Total | 1,667,537 | 1,657,082
Total, gross write-offs | 5 |
Retail real estate | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 62,890 | 396,547
2022 / 2021 | 394,383 | 456,158
2021 / 2020 | 439,515 | 175,148
2020 / 2019 | 171,450 | 77,569
2019 / 2018 | 75,296 | 56,887
Prior | 307,826 | 267,387
Revolving Loans | 198,047 | 209,903
Total | 1,649,407 | 1,639,599
Retail real estate | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 546 | 2,928
2022 / 2021 | 2,989 | 2,991
2021 / 2020 | 2,952 | 1,846
2020 / 2019 | 1,332 | 1,444
2019 / 2018 | 1,423 | 1,063
Prior | 974 | 27
Revolving Loans | 1,506 | 221
Total | 11,722 | 10,520
Retail real estate | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 55 | 945
2022 / 2021 | 58 | 0
2021 / 2020 | 0 | 0
2020 / 2019 | 0 | 0
2019 / 2018 | 0 | 0
Prior | 390 | 393
Revolving Loans | 0 | 0
Total | 503 | 1,338
Retail real estate | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 0 | 77
2022 / 2021 | 75 | 732
2021 / 2020 | 361 | 198
2020 / 2019 | 189 | 81
2019 / 2018 | 82 | 141
Prior | 1,256 | 1,293
Revolving Loans | 243 | 7
Total | 2,206 | 2,529
Retail real estate | Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 0 | 10
2022 / 2021 | 10 | 191
2021 / 2020 | 238 | 107
2020 / 2019 | 159 | 32
2019 / 2018 | 104 | 390
Prior | 2,387 | 1,708
Revolving Loans | 801 | 658
Total | 3,699 | 3,096
Retail other |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 35,635 | 134,581
2023, charge-off | 0 |
2022 / 2021 | 123,863 | 43,646
2022, charge-off | 36 |
2021 / 2020 | 32,249 | 13,144
2021, charge-off | 102 |
2020 / 2019 | 11,278 | 13,086
2020, charge-off | 1 |
2019 / 2018 | 10,581 | 5,646
2019, charge-off | 0 |
Prior | 4,278 | 993
Prior, charge-off | 98 |
Revolving Loans | 82,684 | 91,028
Revolving Loans, charge-off | 0 |
Total | 300,568 | 302,124
Total, gross write-offs | 237 |
Retail other | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 35,635 | 134,567
2022 / 2021 | 123,857 | 43,512
2021 / 2020 | 32,214 | 13,141
2020 / 2019 | 11,275 | 13,086
2019 / 2018 | 10,581 | 5,646
Prior | 4,278 | 991
Revolving Loans | 82,684 | 91,028
Total | 300,524 | 301,971
Retail other | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 0 | 0
Retail other | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 0 | 0
Retail other | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 0 | 0
Retail other | Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 / 2022 | 0 | 14
2022 / 2021 | 6 | 134
2021 / 2020 | 35 | 3
2020 / 2019 | 3 | 0
2019 / 2018 | 0 | 0
Prior | 0 | 2
Revolving Loans | 0 | 0
Total | $ 44 | $ 153

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