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v3.26.1

Background information - Narrative (Details) $ / shares in Units, $ in Thousands |  |  | 6 Months Ended |
--- | --- | --- | --- | ---
Aug. 07, 2026 USD ($) | Mar. 25, 2026 $ / shares | Jun. 30, 2026 USD ($) series | Jul. 16, 2026 USD ($) debenture $ / shares
Background Information (Details) [Line Items] |  |  |  |
Payment of dividends (in dollars per share) | $ / shares |  | $ 1.00 |  |
Number of receivable certificates | series |  |  | 4 |
Receivable certificates |  |  | $ 102,400 |
Gain (loss) arising from difference between carrying amount of financial liability extinguished and consideration paid |  |  | 171,600 |
Write-off of previously capitalized issuance cost |  |  | 36,600 |
Expenses from allocation of premiums paid to reinsurer |  |  | 133,600 |
Tender offer, expense |  |  | $ 1,400 |
Danantara Investment Management |  |  |  |
Background Information (Details) [Line Items] |  |  |  |
Proportion of ownership interest in joint venture | 25.00% |  |  |
Commitment to invest in joint venture | $ 2,500,000 |  |  |
Investments in joint ventures reported in separate financial statements | $ 800,000 |  |  |
Non-adjusting events after reporting period |  |  |  |
Background Information (Details) [Line Items] |  |  |  |
Debt instruments issued, number of bonds | debenture |  |  |  | 400,000
Price per debenture (in dollars per share) | $ / shares |  |  |  | $ 193,000
Debenture amount |  |  |  | $ 77,300

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