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Reinsurance (Tables) | 9 Months Ended
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Sep. 30, 2021
Reinsurance Disclosures [Abstract] |
Reinsurance Recoverable, Credit Quality Indicator [Table Text Block] |
|  | September 30, 2021
($ in thousands) |  | Current |  | Past Due |  | Total Reinsurance Recoverables
Financial strength rating of rated reinsurers |  |  |  |  |  |
A++ |  | $ | 39,325 |  |  | $ | 13 |  |  | $ | 39,338 |
A+ |  | 338,912 |  |  | 887 |  |  | 339,799 |
A |  | 96,071 |  |  | 439 |  |  | 96,510 |
A- |  | 3,166 |  |  | 271 |  |  | 3,437 |
B++ |  | — |  |  | — |  |  | — |
B+ |  | — |  |  | — |  |  | — |
Total rated reinsurers |  | $ | 477,474 |  |  | $ | 1,610 |  |  | $ | 479,084 |
Non-rated reinsurers |  |  |  |  |  |
Federal and state pools |  | $ | 204,001 |  |  | $ | — |  |  | $ | 204,001 |
Other than federal and state pools |  | 4,698 |  |  | 29 |  |  | 4,727 |
Total non-rated reinsurers |  | $ | 208,699 |  |  | $ | 29 |  |  | $ | 208,728 |
Total reinsurance recoverable, gross |  | $ | 686,173 |  |  | $ | 1,639 |  |  | $ | 687,812 |
Less: allowance for credit losses 1 |  |  |  |  |  | (1,595) |
Total reinsurance recoverable, net |  |  |  |  |  | $ | 686,217 |
|  | December 31, 2020
($ in thousands) |  | Current |  | Past Due |  | Total Reinsurance Recoverables
Financial strength rating of rated reinsurers |  |  |  |  |  |
A++ |  | $ | 37,464 |  |  | $ | 102 |  |  | $ | 37,566 |
A+ |  | 354,846 |  |  | 2,452 |  |  | 357,298 |
A |  | 105,652 |  |  | 415 |  |  | 106,067 |
A- |  | 2,139 |  |  | — |  |  | 2,139 |
B++ |  | 56 |  |  | 324 |  |  | 380 |
B+ |  | — |  |  | — |  |  | — |
Total rated reinsurers |  | $ | 500,157 |  |  | $ | 3,293 |  |  | $ | 503,450 |
Non-rated reinsurers |  |  |  |  |  |
Federal and state pools |  | $ | 82,575 |  |  | $ | — |  |  | $ | 82,575 |
Other than federal and state pools |  | 2,676 |  |  | 568 |  |  | 3,244 |
Total non-rated reinsurers |  | $ | 85,251 |  |  | $ | 568 |  |  | $ | 85,819 |
Total reinsurance recoverable, gross |  | $ | 585,408 |  |  | $ | 3,861 |  |  | $ | 589,269 |
Less: allowance for credit losses 1 |  |  |  |  |  | (1,777) |
Total reinsurance recoverable, net |  |  |  |  |  | $ | 587,492 |
Reinsurance Recoverable, Allowance for Credit Loss [Table Text Block] |
($ in thousands) |  | Quarter ended September 30, |  | Nine Months ended September 30,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
Balance at beginning of period |  | $ | 1,777 |  |  | 2,396 |  |  | $ | 1,777 |  |  | 4,400 |
Cumulative effect adjustment 1 |  | — |  |  | — |  |  | — |  |  | (2,903) |
Balance at beginning of period, as adjusted |  | $ | 1,777 |  |  | 2,396 |  |  | $ | 1,777 |  |  | 1,497 |
Current period provision for expected credit losses |  | (182) |  |  | (565) |  |  | (182) |  |  | 334 |
Write-offs charged against the allowance for credit losses |  | — |  |  | — |  |  | — |  |  | — |
Recoveries |  | — |  |  | — |  |  | — |  |  | — |
Allowance for credit losses, end of period |  | $ | 1,595 |  |  | 1,831 |  |  | $ | 1,595 |  |  | 1,831 |
1 Represents the impact of our adoption of ASU 2016-13, Financial Instruments - Credit Losses.
Schedule of List Of Direct, Assumed, And Ceded Reinsurance Amounts |
|  | Quarter ended September 30, |  | Nine Months ended September 30,
($ in thousands) |  | 2021 |  | 2020 |  | 2021 |  | 2020
Premiums written: |  |  |  |  |  |  |  |
Direct |  | $ | 932,752 |  |  | 839,275 |  |  | $ | 2,796,296 |  |  | 2,420,350 |
Assumed |  | 7,136 |  |  | 5,450 |  |  | 17,541 |  |  | 17,902 |
Ceded |  | (126,982) |  |  | (125,217) |  |  | (369,548) |  |  | (346,665) |
Net |  | $ | 812,906 |  |  | 719,508 |  |  | $ | 2,444,289 |  |  | 2,091,587 |
Premiums earned: |  |  |  |  |  |  |  |
Direct |  | $ | 877,620 |  |  | 803,957 |  |  | $ | 2,568,445 |  |  | 2,292,495 |
Assumed |  | 6,304 |  |  | 6,147 |  |  | 16,391 |  |  | 18,375 |
Ceded |  | (116,677) |  |  | (115,563) |  |  | (352,111) |  |  | (333,955) |
Net |  | $ | 767,247 |  |  | 694,541 |  |  | $ | 2,232,725 |  |  | 1,976,915 |
Loss and loss expenses incurred: |  |  |  |  |  |  |  |
Direct |  | $ | 655,483 |  |  | 530,192 |  |  | $ | 1,557,063 |  |  | 1,407,000 |
Assumed |  | 4,143 |  |  | 4,232 |  |  | 10,807 |  |  | 13,430 |
Ceded |  | (154,357) |  |  | (86,622) |  |  | (227,577) |  |  | (168,355) |
Net |  | $ | 505,269 |  |  | 447,802 |  |  | $ | 1,340,293 |  |  | 1,252,075 |
Schedule of Ceded Premiums and Losses Related to Flood Operations |
Ceded to NFIP |  | Quarter ended September 30, |  | Nine Months ended September 30,
($ in thousands) |  | 2021 |  | 2020 |  | 2021 |  | 2020
Ceded premiums written |  | $ | (77,697) |  |  | (77,318) |  |  | $ | (218,520) |  |  | (213,592) |
Ceded premiums earned |  | (69,197) |  |  | (68,427) |  |  | (203,549) |  |  | (202,656) |
Ceded loss and loss expenses incurred |  | (153,713) |  |  | (48,132) |  |  | (174,861) |  |  | (66,219) |

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