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Reinsurance Recoverable Credit Ratings (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | --- | --- | ---
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance recoverable, gross | $ 648,591 |  | $ 784,410 |  |  |
Reinsurance Recoverable, Allowance for Credit Loss | (1,800) | $ (2,300) | (1,600) | $ (1,600) | $ (1,600) | $ (1,600)
Reinsurance recoverable, net of allowance for credit losses | 646,791 |  | 782,810 |  |  |
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments, Gross [Member] | Financial Asset, Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 12,135 |  | 5,011 |  |  |
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments, Gross [Member] | Financial Asset, Not Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 636,456 |  | 779,399 |  |  |
Total federal and state pools [Member] |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 80,629 |  | 180,794 |  |  |
Total federal and state pools [Member] | Financial Asset, Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 0 |  | 0 |  |  |
Total federal and state pools [Member] | Financial Asset, Not Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 80,629 |  | 180,794 |  |  |
Other than Federal And State Pools [Member] |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 7,192 |  | 14,093 |  |  |
Other than Federal And State Pools [Member] | Financial Asset, Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 475 |  | 415 |  |  |
Other than Federal And State Pools [Member] | Financial Asset, Not Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 6,717 |  | 13,678 |  |  |
Non Rated Reinsurer [Member] |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 87,821 |  | 194,887 |  |  |
Non Rated Reinsurer [Member] | Financial Asset, Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 475 |  | 415 |  |  |
Non Rated Reinsurer [Member] | Financial Asset, Not Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 87,346 |  | 194,472 |  |  |
AM Best, A++ Rating [Member] |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 81,005 |  | 46,283 |  |  |
AM Best, A++ Rating [Member] | Financial Asset, Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 888 |  | 1 |  |  |
AM Best, A++ Rating [Member] | Financial Asset, Not Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 80,117 |  | 46,282 |  |  |
AM Best, A+ Rating [Member] |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 353,169 |  | 428,586 |  |  |
AM Best, A+ Rating [Member] | Financial Asset, Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 5,367 |  | 3,191 |  |  |
AM Best, A+ Rating [Member] | Financial Asset, Not Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 347,802 |  | 425,395 |  |  |
AM Best, A Rating [Member] |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 122,908 |  | 107,417 |  |  |
AM Best, A Rating [Member] | Financial Asset, Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 5,316 |  | 1,315 |  |  |
AM Best, A Rating [Member] | Financial Asset, Not Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 117,592 |  | 106,102 |  |  |
AM Best, A- Rating [Member] |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 3,688 |  | 7,237 |  |  |
AM Best, A- Rating [Member] | Financial Asset, Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 89 |  | 89 |  |  |
AM Best, A- Rating [Member] | Financial Asset, Not Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 3,599 |  | 7,148 |  |  |
AM Best Rated Reinsurer [Member] |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 560,770 |  | 589,523 |  |  |
AM Best Rated Reinsurer [Member] | Financial Asset, Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | 11,660 |  | 4,596 |  |  |
AM Best Rated Reinsurer [Member] | Financial Asset, Not Past Due |  |  |  |  |  |
Reinsurance Recoverable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Reinsurance Recoverables, Gross | $ 549,110 |  | $ 584,927 |  |  |

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- Definition Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(6)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=99397103&loc=d3e6824-158387 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=99404803&loc=d3e21409-158489 + Details
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