Deferred Policy Acquisition Costs - Balances and Activity in DAC Roll Forward (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Deferred Policy Acquisition Cost [Line Items] | |||||
| DAC balance, beginning of period | $ 3,915,998 | ||||
| Amortization | $ (85,128) | $ (80,043) | (169,388) | $ (158,592) | |
| DAC balance, end of period | 3,991,486 | 3,991,486 | $ 3,915,998 | ||
| Term Life Insurance [Member] | |||||
| Deferred Policy Acquisition Cost [Line Items] | |||||
| DAC balance, beginning of period | 3,845,442 | 3,608,599 | 3,608,599 | ||
| Capitalization | 254,798 | 540,952 | |||
| Amortization | (166,234) | (316,411) | |||
| Foreign exchange translation and other | (9,473) | 12,302 | |||
| DAC balance, end of period | 3,924,533 | 3,924,533 | 3,845,442 | ||
| Segregated Funds (Canada) [Member] | |||||
| Deferred Policy Acquisition Cost [Line Items] | |||||
| DAC balance, beginning of period | 55,139 | $ 55,303 | 55,303 | ||
| Capitalization | 1,381 | 2,547 | |||
| Amortization | (2,638) | (5,381) | |||
| Foreign exchange translation and other | (1,830) | 2,670 | |||
| DAC balance, end of period | $ 52,052 | $ 52,052 | $ 55,139 | ||
| X | ||||||||||
- Definition Amount of amortization expense (reversal of expense) for deferred policy acquisition costs. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in deferred policy acquisition cost due to the effect of foreign currency translation gain (loss) and increase (decrease) classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Definition Amount of deferred policy acquisition cost capitalized on contract remaining in force. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of deferred policy acquisition cost capitalized. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|