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RETROCESSION - Schedule of Breakdown of Losses Recoverable on a Gross and Net of Collateral Basis (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Ceded Credit Risk |  |  |
Provision for credit losses | $ (1,019) | $ (1,019) |
Total reinsurance recoverable, net |  | 85,790 | $ 25,687
Retrocession Portfolio |  |  |
Ceded Credit Risk |  |  |
Total before provision | 83,283 | 86,290 |
Provision for credit losses | (500) | (500) |
Total reinsurance recoverable, net | 82,783 | 85,790 |
Net of Collateral | 72,021 | 66,006 |
A- or better by A.M. Best | Retrocession Portfolio |  |  |
Ceded Credit Risk |  |  |
Total before provision | 79,843 | 82,181 |
Net of Collateral | 71,695 | 63,979 |
Not rated | Retrocession Portfolio |  |  |
Ceded Credit Risk |  |  |
Total before provision | 3,440 | 4,109 |
Net of Collateral | $ 326 | $ 2,027 |

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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/2009/role/commonPracticeRef -Topic 944 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479838/944-20-50-5 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 310 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477363/944-310-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 310 -Name Accounting Standards Codification -Section 45 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477409/944-310-45-6 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 310 -Name Accounting Standards Codification -Section 45 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477409/944-310-45-5 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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