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Bank segment - Principal balance of impaired loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Recorded investment: |  |  |  |  |
With no related allowance recorded | $ 14,492 |  | $ 14,492 |  | $ 18,811
With an allowance recorded | 19,609 |  | 19,609 |  | 32,948
Recorded investment | 34,101 |  | 34,101 |  | 51,759
Unpaid principal balance: |  |  |  |  |
With no related allowance recorded | 18,725 |  | 18,725 |  | 23,200
With an allowance recorded | 19,840 |  | 19,840 |  | 33,205
Unpaid principal balance | 38,565 |  | 38,565 |  | 56,405
Related Allowance | 3,129 |  | 3,129 |  | 4,083
Average recorded investment: |  |  |  |  |
With no related allowance recorded | 14,873 | $ 22,715 | 16,258 | $ 19,993 |
With an allowance recorded | 19,880 | 37,610 | 22,582 | 36,893 |
Average recorded investment | 34,753 | 60,325 | 38,840 | 56,886 |
Interest income recognized: |  |  |  |  |
With no related allowance recorded | 148 | 183 | 278 | 256 |
With an allowance recorded | 271 | 377 | 891 | 623 |
Interest income recognized | 419 | 560 | 1,169 | 879 |
Residential 1-4 family |  |  |  |  |
Recorded investment: |  |  |  |  |
With no related allowance recorded | 9,364 |  | 9,364 |  | 9,571
With an allowance recorded | 9,824 |  | 9,824 |  | 10,283
Recorded investment | 19,188 |  | 19,188 |  | 19,854
Unpaid principal balance: |  |  |  |  |
With no related allowance recorded | 9,963 |  | 9,963 |  | 10,400
With an allowance recorded | 10,027 |  | 10,027 |  | 10,486
Unpaid principal balance | 19,990 |  | 19,990 |  | 20,886
Related Allowance | 1,332 |  | 1,332 |  | 1,352
Average recorded investment: |  |  |  |  |
With no related allowance recorded | 9,304 | 10,672 | 9,429 | 10,532 |
With an allowance recorded | 10,054 | 11,982 | 10,051 | 12,000 |
Average recorded investment | 19,358 | 22,654 | 19,480 | 22,532 |
Interest income recognized: |  |  |  |  |
With no related allowance recorded | 76 | 152 | 160 | 203 |
With an allowance recorded | 117 | 115 | 236 | 237 |
Interest income recognized | 193 | 267 | 396 | 440 |
Commercial real estate |  |  |  |  |
Recorded investment: |  |  |  |  |
With no related allowance recorded | 0 |  | 0 |  | 223
With an allowance recorded | 1,289 |  | 1,289 |  | 1,346
Recorded investment | 1,289 |  | 1,289 |  | 1,569
Unpaid principal balance: |  |  |  |  |
With no related allowance recorded | 0 |  | 0 |  | 228
With an allowance recorded | 1,289 |  | 1,289 |  | 1,346
Unpaid principal balance | 1,289 |  | 1,289 |  | 1,574
Related Allowance | 73 |  | 73 |  | 80
Average recorded investment: |  |  |  |  |
With no related allowance recorded | 143 | 1,152 | 182 | 1,163 |
With an allowance recorded | 1,292 | 2,519 | 1,296 | 1,686 |
Average recorded investment | 1,435 | 3,671 | 1,478 | 2,849 |
Interest income recognized: |  |  |  |  |
With no related allowance recorded | 11 | 0 | 11 | 0 |
With an allowance recorded | 14 | 0 | 28 | 0 |
Interest income recognized | 25 | 0 | 39 | 0 |
Home equity line of credit |  |  |  |  |
Recorded investment: |  |  |  |  |
With no related allowance recorded | 2,287 |  | 2,287 |  | 1,500
With an allowance recorded | 4,397 |  | 4,397 |  | 4,658
Recorded investment | 6,684 |  | 6,684 |  | 6,158
Unpaid principal balance: |  |  |  |  |
With no related allowance recorded | 2,707 |  | 2,707 |  | 1,900
With an allowance recorded | 4,425 |  | 4,425 |  | 4,712
Unpaid principal balance | 7,132 |  | 7,132 |  | 6,612
Related Allowance | 275 |  | 275 |  | 215
Average recorded investment: |  |  |  |  |
With no related allowance recorded | 2,401 | 1,038 | 2,203 | 943 |
With an allowance recorded | 4,372 | 3,299 | 4,467 | 3,122 |
Average recorded investment | 6,773 | 4,337 | 6,670 | 4,065 |
Interest income recognized: |  |  |  |  |
With no related allowance recorded | 51 | 9 | 65 | 9 |
With an allowance recorded | 47 | 28 | 96 | 55 |
Interest income recognized | 98 | 37 | 161 | 64 |
Residential land |  |  |  |  |
Recorded investment: |  |  |  |  |
With no related allowance recorded | 1,249 |  | 1,249 |  | 1,218
With an allowance recorded | 1,340 |  | 1,340 |  | 2,411
Recorded investment | 2,589 |  | 2,589 |  | 3,629
Unpaid principal balance: |  |  |  |  |
With no related allowance recorded | 1,788 |  | 1,788 |  | 1,803
With an allowance recorded | 1,340 |  | 1,340 |  | 2,411
Unpaid principal balance | 3,128 |  | 3,128 |  | 4,214
Related Allowance | 480 |  | 480 |  | 789
Average recorded investment: |  |  |  |  |
With no related allowance recorded | 1,075 | 1,484 | 1,016 | 1,537 |
With an allowance recorded | 1,532 | 2,977 | 1,804 | 3,177 |
Average recorded investment | 2,607 | 4,461 | 2,820 | 4,714 |
Interest income recognized: |  |  |  |  |
With no related allowance recorded | 8 | 15 | 34 | 31 |
With an allowance recorded | 24 | 54 | 61 | 121 |
Interest income recognized | 32 | 69 | 95 | 152 |
Commercial construction |  |  |  |  |
Recorded investment: |  |  |  |  |
With no related allowance recorded | 0 |  | 0 |  | 0
With an allowance recorded | 0 |  | 0 |  | 0
Recorded investment | 0 |  | 0 |  | 0
Unpaid principal balance: |  |  |  |  |
With no related allowance recorded | 0 |  | 0 |  | 0
With an allowance recorded | 0 |  | 0 |  | 0
Unpaid principal balance | 0 |  | 0 |  | 0
Related Allowance | 0 |  | 0 |  | 0
Average recorded investment: |  |  |  |  |
With no related allowance recorded | 0 | 0 | 0 | 0 |
With an allowance recorded | 0 | 0 | 0 | 0 |
Average recorded investment | 0 | 0 | 0 | 0 |
Interest income recognized: |  |  |  |  |
With no related allowance recorded | 0 | 0 | 0 | 0 |
With an allowance recorded | 0 | 0 | 0 | 0 |
Interest income recognized | 0 | 0 | 0 | 0 |
Residential construction |  |  |  |  |
Recorded investment: |  |  |  |  |
With no related allowance recorded | 0 |  | 0 |  | 0
With an allowance recorded | 0 |  | 0 |  | 0
Recorded investment | 0 |  | 0 |  | 0
Unpaid principal balance: |  |  |  |  |
With no related allowance recorded | 0 |  | 0 |  | 0
With an allowance recorded | 0 |  | 0 |  | 0
Unpaid principal balance | 0 |  | 0 |  | 0
Related Allowance | 0 |  | 0 |  | 0
Average recorded investment: |  |  |  |  |
With no related allowance recorded | 0 | 0 | 0 | 0 |
With an allowance recorded | 0 | 0 | 0 | 0 |
Average recorded investment | 0 | 0 | 0 | 0 |
Interest income recognized: |  |  |  |  |
With no related allowance recorded | 0 | 0 | 0 | 0 |
With an allowance recorded | 0 | 0 | 0 | 0 |
Interest income recognized | 0 | 0 | 0 | 0 |
Commercial loans |  |  |  |  |
Recorded investment: |  |  |  |  |
With no related allowance recorded | 1,592 |  | 1,592 |  | 6,299
With an allowance recorded | 2,691 |  | 2,691 |  | 14,240
Recorded investment | 4,283 |  | 4,283 |  | 20,539
Unpaid principal balance: |  |  |  |  |
With no related allowance recorded | 4,267 |  | 4,267 |  | 8,869
With an allowance recorded | 2,691 |  | 2,691 |  | 14,240
Unpaid principal balance | 6,958 |  | 6,958 |  | 23,109
Related Allowance | 939 |  | 939 |  | 1,641
Average recorded investment: |  |  |  |  |
With no related allowance recorded | 1,949 | 8,369 | 3,428 | 5,818 |
With an allowance recorded | 2,562 | 16,821 | 4,915 | 16,896 |
Average recorded investment | 4,511 | 25,190 | 8,343 | 22,714 |
Interest income recognized: |  |  |  |  |
With no related allowance recorded | 2 | 7 | 8 | 13 |
With an allowance recorded | 68 | 180 | 469 | 210 |
Interest income recognized | 70 | 187 | 477 | 223 |
Consumer loans |  |  |  |  |
Recorded investment: |  |  |  |  |
With no related allowance recorded | 0 |  | 0 |  | 0
With an allowance recorded | 68 |  | 68 |  | 10
Recorded investment | 68 |  | 68 |  | 10
Unpaid principal balance: |  |  |  |  |
With no related allowance recorded | 0 |  | 0 |  | 0
With an allowance recorded | 68 |  | 68 |  | 10
Unpaid principal balance | 68 |  | 68 |  | 10
Related Allowance | 30 |  | 30 |  | $ 6
Average recorded investment: |  |  |  |  |
With no related allowance recorded | 1 | 0 | 0 | 0 |
With an allowance recorded | 68 | 12 | 49 | 12 |
Average recorded investment | 69 | 12 | 49 | 12 |
Interest income recognized: |  |  |  |  |
With no related allowance recorded | 0 | 0 | 0 | 0 |
With an allowance recorded | 1 | 0 | 1 | 0 |
Interest income recognized | $ 1 | $ 0 | $ 1 | $ 0 |

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