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Bank segment - Allowance for credit losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period | $ 77,084 | $ 54,297 | $ 53,355 | $ 52,119 |
Charge-offs | (7,380) | (5,624) | (14,011) | (11,815) |
Recoveries | 770 | 2,064 | 1,788 | 3,563 |
Provision | 10,833 | 7,688 | 20,734 | 14,558 |
Valuation allowance, balance at the end of the period | 81,307 | 58,425 | 81,307 | 58,425 |
Total | 5,450,802 |  | 5,450,802 |  | $ 5,120,664
Ending balance: individually evaluated for impairment |  |  |  |  | 2,691
Ending balance: collectively evaluated for impairment |  |  |  |  | 50,664
Financing Receivables: |  |  |  |  |
Loans and leases receivable before fees, gross | 5,356,510 |  | 5,356,510 |  | 5,067,821
Ending balance: individually evaluated for impairment |  |  |  |  | 40,737
Ending balance: collectively evaluated for impairment |  |  |  |  | 5,079,927
Real estate |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Total | 4,160,943 |  | 4,160,943 |  | 4,192,069
Real estate | Residential 1-4 family |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period | 4,476 | 1,911 | 2,380 | 1,976 |
Charge-offs | (7) | (5) | (7) | (19) |
Recoveries | 2 | 8 | 55 | 617 |
Provision | (560) | 101 | (667) | (559) |
Valuation allowance, balance at the end of the period | 3,911 | 2,015 | 3,911 | 2,015 |
Total | 2,123,226 |  | 2,123,226 |  | 2,178,135
Ending balance: individually evaluated for impairment |  |  |  |  | 898
Ending balance: collectively evaluated for impairment |  |  |  |  | 1,482
Financing Receivables: |  |  |  |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 15,600
Ending balance: collectively evaluated for impairment |  |  |  |  | 2,162,535
Real estate | Commercial real estate |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period | 16,587 | 14,825 | 15,053 | 14,505 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Provision | 4,513 | 986 | 5,839 | 1,306 |
Valuation allowance, balance at the end of the period | 21,100 | 15,811 | 21,100 | 15,811 |
Total | 855,566 |  | 855,566 |  | 824,830
Ending balance: individually evaluated for impairment |  |  |  |  | 2
Ending balance: collectively evaluated for impairment |  |  |  |  | 15,051
Financing Receivables: |  |  |  |  |
Loans and leases receivable before fees, gross |  |  |  |  | 824,830
Ending balance: individually evaluated for impairment |  |  |  |  | 1,048
Ending balance: collectively evaluated for impairment |  |  |  |  | 823,782
Real estate | Home equity line of credit |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period | 6,225 | 6,493 | 6,922 | 6,371 |
Charge-offs | 0 | (19) | 0 | (19) |
Recoveries | 0 | 4 | 6 | 9 |
Provision | (11) | 403 | (173) | 520 |
Valuation allowance, balance at the end of the period | 6,214 | 6,881 | 6,214 | 6,881 |
Total | 1,065,264 |  | 1,065,264 |  | 1,092,125
Ending balance: individually evaluated for impairment |  |  |  |  | 322
Ending balance: collectively evaluated for impairment |  |  |  |  | 6,600
Financing Receivables: |  |  |  |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 12,073
Ending balance: collectively evaluated for impairment |  |  |  |  | 1,080,052
Real estate | Residential land |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period | 352 | 425 | 449 | 479 |
Charge-offs | (343) | (4) | (351) | (4) |
Recoveries | 5 | 7 | 14 | 14 |
Provision | 342 | 109 | 308 | 48 |
Valuation allowance, balance at the end of the period | 356 | 537 | 356 | 537 |
Total | 13,224 |  | 13,224 |  | 14,704
Ending balance: individually evaluated for impairment |  |  |  |  | 0
Ending balance: collectively evaluated for impairment |  |  |  |  | 449
Financing Receivables: |  |  |  |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 3,091
Ending balance: collectively evaluated for impairment |  |  |  |  | 11,613
Real estate | Commercial construction |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period | 3,446 | 2,843 | 2,097 | 2,790 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Provision | 1,311 | (797) | 2,371 | (744) |
Valuation allowance, balance at the end of the period | 4,757 | 2,046 | 4,757 | 2,046 |
Total | 92,904 |  | 92,904 |  | 70,605
Ending balance: individually evaluated for impairment |  |  |  |  | 0
Ending balance: collectively evaluated for impairment |  |  |  |  | 2,097
Financing Receivables: |  |  |  |  |
Loans and leases receivable before fees, gross |  |  |  |  | 70,605
Ending balance: individually evaluated for impairment |  |  |  |  | 0
Ending balance: collectively evaluated for impairment |  |  |  |  | 70,605
Real estate | Residential construction |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period | 14 | 3 | 3 | 4 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Provision | 0 | (1) | (3) | (2) |
Valuation allowance, balance at the end of the period | 14 | 2 | 14 | 2 |
Total | 10,759 |  | 10,759 |  | 11,670
Ending balance: individually evaluated for impairment |  |  |  |  | 0
Ending balance: collectively evaluated for impairment |  |  |  |  | 3
Financing Receivables: |  |  |  |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 0
Ending balance: collectively evaluated for impairment |  |  |  |  | 11,670
Commercial |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period | 12,977 | 10,814 | 10,245 | 9,225 |
Charge-offs | (699) | (494) | (1,068) | (1,112) |
Recoveries | 106 | 1,281 | 292 | 1,461 |
Provision | 1,484 | 1,472 | 3,477 | 3,499 |
Valuation allowance, balance at the end of the period | 13,868 | 13,073 | 13,868 | 13,073 |
Total | 1,073,829 |  | 1,073,829 |  | 670,674
Ending balance: individually evaluated for impairment |  |  |  |  | 1,015
Ending balance: collectively evaluated for impairment |  |  |  |  | 9,230
Financing Receivables: |  |  |  |  |
Loans and leases receivable before fees, gross |  |  |  |  | 670,674
Ending balance: individually evaluated for impairment |  |  |  |  | 8,418
Ending balance: collectively evaluated for impairment |  |  |  |  | 662,256
Consumer |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period | 33,007 | 16,983 | 16,206 | 16,769 |
Charge-offs | (6,331) | (5,102) | (12,585) | (10,661) |
Recoveries | 657 | 764 | 1,421 | 1,462 |
Provision | 3,754 | 5,415 | 9,582 | 10,490 |
Valuation allowance, balance at the end of the period | 31,087 | $ 18,060 | 31,087 | $ 18,060 |
Total | $ 216,030 |  | 216,030 |  | 257,921
Ending balance: individually evaluated for impairment |  |  |  |  | 454
Ending balance: collectively evaluated for impairment |  |  |  |  | 15,752
Financing Receivables: |  |  |  |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 507
Ending balance: collectively evaluated for impairment |  |  |  |  | $ 257,414
Impact of ASU No. 2016-13 |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period |  |  | 19,441 |  |
Impact of ASU No. 2016-13 | Real estate | Residential 1-4 family |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period |  |  | 2,150 |  |
Impact of ASU No. 2016-13 | Real estate | Commercial real estate |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period |  |  | 208 |  |
Impact of ASU No. 2016-13 | Real estate | Home equity line of credit |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period |  |  | (541) |  |
Impact of ASU No. 2016-13 | Real estate | Residential land |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period |  |  | (64) |  |
Impact of ASU No. 2016-13 | Real estate | Commercial construction |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period |  |  | 289 |  |
Impact of ASU No. 2016-13 | Real estate | Residential construction |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period |  |  | 14 |  |
Impact of ASU No. 2016-13 | Commercial |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period |  |  | 922 |  |
Impact of ASU No. 2016-13 | Consumer |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Valuation allowance, balance at the beginning of the period |  |  | $ 16,463 |  |

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