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Bank segment - Principal balance of impaired loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2019 | Dec. 31, 2019
Recorded investment: |  |  |
No related allowance recorded |  |  | $ 14,037
With an allowance recorded |  |  | 26,700
Recorded investment |  |  | 40,737
Unpaid principal balance: |  |  |
With no related allowance recorded |  |  | 15,123
With an allowance recorded |  |  | 26,762
Unpaid principal balance |  |  | 41,885
Related Allowance |  |  | 2,691
Average recorded investment: |  |  |
With no related allowance recorded | $ 18,397 | $ 17,610 |
With an allowance recorded | 29,395 | 29,240 |
Average recorded investment | 47,792 | 46,850 |
Interest income recognized: |  |  |
With no related allowance recorded | 470 | 833 |
With an allowance recorded | 288 | 826 |
Interest income recognized | 758 | 1,659 |
Real estate | Residential 1-4 family |  |  |
Recorded investment: |  |  |
No related allowance recorded |  |  | 6,817
With an allowance recorded |  |  | 8,783
Recorded investment |  |  | 15,600
Unpaid principal balance: |  |  |
With no related allowance recorded |  |  | 7,207
With an allowance recorded |  |  | 8,835
Unpaid principal balance |  |  | 16,042
Related Allowance |  |  | 898
Average recorded investment: |  |  |
With no related allowance recorded | 8,562 | 8,515 |
With an allowance recorded | 8,296 | 8,377 |
Average recorded investment | 16,858 | 16,892 |
Interest income recognized: |  |  |
With no related allowance recorded | 175 | 422 |
With an allowance recorded | 86 | 265 |
Interest income recognized | 261 | 687 |
Real estate | Commercial real estate |  |  |
Recorded investment: |  |  |
No related allowance recorded |  |  | 195
With an allowance recorded |  |  | 853
Recorded investment |  |  | 1,048
Unpaid principal balance: |  |  |
With no related allowance recorded |  |  | 200
With an allowance recorded |  |  | 853
Unpaid principal balance |  |  | 1,053
Related Allowance |  |  | 2
Average recorded investment: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 881 | 894 |
Average recorded investment | 881 | 894 |
Interest income recognized: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 9 | 28 |
Interest income recognized | 9 | 28 |
Real estate | Home equity line of credit |  |  |
Recorded investment: |  |  |
No related allowance recorded |  |  | 1,984
With an allowance recorded |  |  | 10,089
Recorded investment |  |  | 12,073
Unpaid principal balance: |  |  |
With no related allowance recorded |  |  | 2,135
With an allowance recorded |  |  | 10,099
Unpaid principal balance |  |  | 12,234
Related Allowance |  |  | 322
Average recorded investment: |  |  |
With no related allowance recorded | 1,797 | 2,091 |
With an allowance recorded | 11,332 | 11,606 |
Average recorded investment | 13,129 | 13,697 |
Interest income recognized: |  |  |
With no related allowance recorded | 12 | 78 |
With an allowance recorded | 143 | 425 |
Interest income recognized | 155 | 503 |
Real estate | Residential land |  |  |
Recorded investment: |  |  |
No related allowance recorded |  |  | 3,091
With an allowance recorded |  |  | 0
Recorded investment |  |  | 3,091
Unpaid principal balance: |  |  |
With no related allowance recorded |  |  | 3,294
With an allowance recorded |  |  | 0
Unpaid principal balance |  |  | 3,294
Related Allowance |  |  | 0
Average recorded investment: |  |  |
With no related allowance recorded | 3,205 | 2,507 |
With an allowance recorded | 0 | 36 |
Average recorded investment | 3,205 | 2,543 |
Interest income recognized: |  |  |
With no related allowance recorded | 40 | 90 |
With an allowance recorded | 0 | 0 |
Interest income recognized | 40 | 90 |
Real estate | Commercial construction |  |  |
Recorded investment: |  |  |
No related allowance recorded |  |  | 0
With an allowance recorded |  |  | 0
Recorded investment |  |  | 0
Unpaid principal balance: |  |  |
With no related allowance recorded |  |  | 0
With an allowance recorded |  |  | 0
Unpaid principal balance |  |  | 0
Related Allowance |  |  | 0
Average recorded investment: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 0 | 0 |
Average recorded investment | 0 | 0 |
Interest income recognized: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 0 | 0 |
Interest income recognized | 0 | 0 |
Real estate | Residential construction |  |  |
Recorded investment: |  |  |
No related allowance recorded |  |  | 0
With an allowance recorded |  |  | 0
Recorded investment |  |  | 0
Unpaid principal balance: |  |  |
With no related allowance recorded |  |  | 0
With an allowance recorded |  |  | 0
Unpaid principal balance |  |  | 0
Related Allowance |  |  | 0
Average recorded investment: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 0 | 0 |
Average recorded investment | 0 | 0 |
Interest income recognized: |  |  |
With no related allowance recorded | 0 | 0 |
With an allowance recorded | 0 | 0 |
Interest income recognized | 0 | 0 |
Commercial |  |  |
Recorded investment: |  |  |
No related allowance recorded |  |  | 1,948
With an allowance recorded |  |  | 6,470
Recorded investment |  |  | 8,418
Unpaid principal balance: |  |  |
With no related allowance recorded |  |  | 2,285
With an allowance recorded |  |  | 6,470
Unpaid principal balance |  |  | 8,755
Related Allowance |  |  | 1,015
Average recorded investment: |  |  |
With no related allowance recorded | 4,812 | 4,470 |
With an allowance recorded | 8,330 | 8,026 |
Average recorded investment | 13,142 | 12,496 |
Interest income recognized: |  |  |
With no related allowance recorded | 239 | 239 |
With an allowance recorded | 38 | 94 |
Interest income recognized | 277 | 333 |
Consumer |  |  |
Recorded investment: |  |  |
No related allowance recorded |  |  | 2
With an allowance recorded |  |  | 505
Recorded investment |  |  | 507
Unpaid principal balance: |  |  |
With no related allowance recorded |  |  | 2
With an allowance recorded |  |  | 505
Unpaid principal balance |  |  | 507
Related Allowance |  |  | $ 454
Average recorded investment: |  |  |
With no related allowance recorded | 21 | 27 |
With an allowance recorded | 556 | 301 |
Average recorded investment | 577 | 328 |
Interest income recognized: |  |  |
With no related allowance recorded | 4 | 4 |
With an allowance recorded | 12 | 14 |
Interest income recognized | $ 16 | $ 18 |

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