DEFERRED ACQUISITION COSTS, PRESENT VALUE OF FUTURE PROFITS AND SALES INDUCEMENTS - SALES INDUCEMENTS (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Fixed indexed annuities | ||
| Movement in Deferred Sales Inducements [Roll Forward] | ||
| Beginning of period | $ 170.1 | $ 128.1 |
| Capitalizations | 28.1 | 31.2 |
| Amortization expense | (12.3) | (9.9) |
| End of period | 185.9 | 149.4 |
| Fixed interest annuities | ||
| Movement in Deferred Sales Inducements [Roll Forward] | ||
| Beginning of period | 6.5 | 5.1 |
| Capitalizations | 0.9 | 1.1 |
| Amortization expense | (0.5) | (0.5) |
| End of period | 6.9 | 5.7 |
| Annuity | ||
| Movement in Deferred Sales Inducements [Roll Forward] | ||
| Beginning of period | 176.6 | 133.2 |
| Capitalizations | 29.0 | 32.3 |
| Amortization expense | (12.8) | (10.4) |
| End of period | $ 192.8 | $ 155.1 |