Related party transactions - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
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| Related Party Transaction [Line Items] | |||||
| Investment expenses and fees | $ 2,117 | $ 2,132 | $ 4,431 | $ 4,170 | |
| Payments for repurchase of common stock | 186,536 | 149,864 | |||
| Asset, held-in-Trust | 402,500 | 402,500 | $ 336,400 | ||
| Related Party | |||||
| Related Party Transaction [Line Items] | |||||
| General and administrative expense | 1,900 | 2,400 | 3,900 | 4,700 | |
| Investment expenses and fees | 2,000 | 1,800 | 3,900 | 3,600 | |
| Cash paid to Genworth | 27,000 | 25,500 | 51,100 | 48,300 | |
| Payments for repurchase of common stock | $ 75,300 | $ 68,400 | $ 150,700 | $ 121,400 | |
| X | ||||||||||
- Definition The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expenses related to the generation of investment income. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The cash outflow to reacquire common stock during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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