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Investments - Impairments on Investments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Schedule of Impairments [Line Items] |  |  |  |
Credit impaired | $ (417) | $ (158) | $ (1,086) | $ (401)
Expected credit losses: |  |  |  |
Held-to-maturity securities | 0 | 0 | 0 | (2,167)
Net impairment losses recognized in earnings | (810) | (698) | (2,633) | (3,763)
Total available-for-sale securities |  |  |  |
Schedule of Impairments [Line Items] |  |  |  |
Intent to sell | (78) | (1) | (495) | (299)
Credit impaired | (417) | (158) | (1,086) | (401)
Total available-for-sale securities | (495) | (159) | (1,581) | (700)
Held-to-maturity securities |  |  |  |
Expected credit losses: |  |  |  |
Held-to-maturity securities | 0 | 0 | 0 | (2,167)
Agent loans |  |  |  |
Expected credit losses: |  |  |  |
Agent loans | (111) | (354) | (275) | (354)
Other loans receivable |  |  |  |
Expected credit losses: |  |  |  |
Agent loans | (218) | (474) | (1,058) | (831)
Net impairment losses recognized in earnings | $ (204) | $ (185) | $ (777) | $ (542)

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