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Portfolio Loans - Summary of risk grades segregated by category (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Loans |  |
Portfolio loans | $ 7,185,650 | $ 6,814,177
Pass |  |
Loans |  |
Portfolio loans | 6,426,332 | 6,016,748
Watch |  |
Loans |  |
Portfolio loans | 540,258 | 554,970
Special Mention |  |
Loans |  |
Portfolio loans | 146,235 | 150,481
Substandard |  |
Loans |  |
Portfolio loans | 45,100 | 69,048
Substandard Non-accrual |  |
Loans |  |
Portfolio loans | 27,725 | 22,930
Commercial |  |
Loans |  |
Portfolio loans | 2,054,550 | 2,014,576
Commercial | Pass |  |
Loans |  |
Portfolio loans | 1,816,456 | 1,768,755
Commercial | Watch |  |
Loans |  |
Portfolio loans | 131,361 | 136,948
Commercial | Special Mention |  |
Loans |  |
Portfolio loans | 76,706 | 72,447
Commercial | Substandard |  |
Loans |  |
Portfolio loans | 19,349 | 27,903
Commercial | Substandard Non-accrual |  |
Loans |  |
Portfolio loans | 10,678 | 8,523
Commercial real estate |  |
Loans |  |
Portfolio loans | 2,920,312 | 2,892,535
Commercial real estate | Pass |  |
Loans |  |
Portfolio loans | 2,446,143 | 2,393,372
Commercial real estate | Watch |  |
Loans |  |
Portfolio loans | 379,546 | 383,277
Commercial real estate | Special Mention |  |
Loans |  |
Portfolio loans | 67,179 | 75,486
Commercial real estate | Substandard |  |
Loans |  |
Portfolio loans | 18,679 | 34,897
Commercial real estate | Substandard Non-accrual |  |
Loans |  |
Portfolio loans | 8,765 | 5,503
Real estate construction |  |
Loans |  |
Portfolio loans | 500,599 | 461,786
Real estate construction | Pass |  |
Loans |  |
Portfolio loans | 482,718 | 434,681
Real estate construction | Watch |  |
Loans |  |
Portfolio loans | 15,473 | 24,481
Real estate construction | Special Mention |  |
Loans |  |
Portfolio loans | 8 | 77
Real estate construction | Substandard |  |
Loans |  |
Portfolio loans | 2,400 | 2,546
Real estate construction | Substandard Non-accrual |  |
Loans |  |
Portfolio loans |  | 1
Retail Real Estate |  |
Loans |  |
Portfolio loans | 1,525,810 | 1,407,852
Retail Real Estate | Pass |  |
Loans |  |
Portfolio loans | 1,496,677 | 1,382,616
Retail Real Estate | Watch |  |
Loans |  |
Portfolio loans | 13,878 | 10,264
Retail Real Estate | Special Mention |  |
Loans |  |
Portfolio loans | 2,342 | 2,471
Retail Real Estate | Substandard |  |
Loans |  |
Portfolio loans | 4,672 | 3,702
Retail Real Estate | Substandard Non-accrual |  |
Loans |  |
Portfolio loans | 8,241 | 8,799
Retail Other |  |
Loans |  |
Portfolio loans | 184,379 | 37,428
Retail Other | Pass |  |
Loans |  |
Portfolio loans | 184,338 | 37,324
Retail Other | Substandard Non-accrual |  |
Loans |  |
Portfolio loans | 41 | 104
Commercial Loans |  |
Loans |  |
Portfolio loans | 2,054,550 | 2,014,576
Commercial Real Estate Loans |  |
Loans |  |
Portfolio loans | 2,920,312 | 2,892,535
Real Estate Construction |  |
Loans |  |
Portfolio loans | 500,599 | 461,786
Retail Real Estate |  |
Loans |  |
Portfolio loans | 1,525,810 | 1,407,852
Retail Other |  |
Loans |  |
Portfolio loans | $ 184,379 | $ 37,428

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