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Portfolio Loans - Summary of risk grades segregated by category (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Loans |  |
Portfolio loans | $ 7,272,873 | $ 7,188,998
Pass |  |
Loans |  |
Portfolio loans | 6,688,300 | 6,518,101
Watch |  |
Loans |  |
Portfolio loans | 361,791 | 463,053
Special Mention |  |
Loans |  |
Portfolio loans | 130,228 | 121,120
Substandard |  |
Loans |  |
Portfolio loans | 80,066 | 70,778
Substandard Non-accrual |  |
Loans |  |
Portfolio loans | 12,488 | 15,946
Commercial |  |
Loans |  |
Portfolio loans | 1,906,595 | 1,943,886
Commercial | Pass |  |
Loans |  |
Portfolio loans | 1,725,369 | 1,747,756
Commercial | Watch |  |
Loans |  |
Portfolio loans | 73,471 | 93,582
Commercial | Special Mention |  |
Loans |  |
Portfolio loans | 74,967 | 69,427
Commercial | Substandard |  |
Loans |  |
Portfolio loans | 26,028 | 26,117
Commercial | Substandard Non-accrual |  |
Loans |  |
Portfolio loans | 6,760 | 7,004
Commercial real estate |  |
Loans |  |
Portfolio loans | 3,134,794 | 3,119,807
Commercial real estate | Pass |  |
Loans |  |
Portfolio loans | 2,769,016 | 2,682,441
Commercial real estate | Watch |  |
Loans |  |
Portfolio loans | 262,411 | 343,304
Commercial real estate | Special Mention |  |
Loans |  |
Portfolio loans | 53,195 | 49,695
Commercial real estate | Substandard |  |
Loans |  |
Portfolio loans | 47,567 | 38,394
Commercial real estate | Substandard Non-accrual |  |
Loans |  |
Portfolio loans | 2,605 | 5,973
Real estate construction |  |
Loans |  |
Portfolio loans | 445,428 | 385,996
Real estate construction | Pass |  |
Loans |  |
Portfolio loans | 428,467 | 369,797
Real estate construction | Watch |  |
Loans |  |
Portfolio loans | 14,557 | 13,793
Real estate construction | Special Mention |  |
Loans |  |
Portfolio loans | 4 | 6
Real estate construction | Substandard |  |
Loans |  |
Portfolio loans | 2,400 | 2,400
Retail real estate |  |
Loans |  |
Portfolio loans | 1,544,365 | 1,512,976
Retail real estate | Pass |  |
Loans |  |
Portfolio loans | 1,523,791 | 1,491,845
Retail real estate | Watch |  |
Loans |  |
Portfolio loans | 11,352 | 12,374
Retail real estate | Special Mention |  |
Loans |  |
Portfolio loans | 2,062 | 1,992
Retail real estate | Substandard |  |
Loans |  |
Portfolio loans | 4,071 | 3,867
Retail real estate | Substandard Non-accrual |  |
Loans |  |
Portfolio loans | 3,089 | 2,898
Retail other |  |
Loans |  |
Portfolio loans | 241,691 | 226,333
Retail other | Pass |  |
Loans |  |
Portfolio loans | 241,657 | 226,262
Retail other | Substandard Non-accrual |  |
Loans |  |
Portfolio loans | 34 | 71
Commercial Loans |  |
Loans |  |
Portfolio loans | 1,906,595 | 1,943,886
Commercial Real Estate Loans |  |
Loans |  |
Portfolio loans | 3,134,794 | 3,119,807
Real Estate Construction |  |
Loans |  |
Portfolio loans | 445,428 | 385,996
Retail real estate |  |
Loans |  |
Portfolio loans | 1,544,365 | 1,512,976
Retail other |  |
Loans |  |
Portfolio loans | $ 241,691 | $ 226,333

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