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v3.25.3

Other Comprehensive Income and Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Equity, Attributable to Parent, Beginning Balance | $ 370.0 |  | $ 2,788.4 |
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | 30.7 | $ 64.8 | 77.7 | $ 108.3
Equity, Attributable to Parent, Ending Balance | 2,732.1 |  | 2,732.1 |
Net Unrealized Losses on Fixed Maturities |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Equity, Attributable to Parent, Beginning Balance | (631.7) | (679.6) | (687.8) | (530.9)
Other Comprehensive Income (Loss) Before Reclassifications | 84.7 | 226.4 | 140.7 | 68.9
Reclassification from AOCI, Current Period, Tax | 0.2 | 0.0 | 0.2 | 2.3
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 0.7 | 0.1 | 0.8 | 8.9
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | 22.4 | 60.1 | 37.3 | (20.6)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | 85.4 | 226.5 | 141.5 | 77.8
Equity, Attributable to Parent, Ending Balance | (546.3) | (453.1) | (546.3) | (453.1)
Net Unrealized Losses on Investments with an Allowance for Credit Losses |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Equity, Attributable to Parent, Beginning Balance | (2.2) | (3.7) | (3.2) | (2.5)
Other Comprehensive Income (Loss) Before Reclassifications | (5.1) | 0.2 | (0.3) | (0.5)
Reclassification from AOCI, Current Period, Tax | 1.2 | 0.0 | 0.2 | (0.2)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 4.3 | 0.0 | 0.5 | (0.5)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | (0.2) | (0.2) | 0.1 | 0.7
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | (0.8) | 0.2 | 0.2 | (1.0)
Equity, Attributable to Parent, Ending Balance | (3.0) | (3.5) | (3.0) | (3.5)
Net Unrecognized Postretirement Benefit Income |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Equity, Attributable to Parent, Beginning Balance | 7.6 | 8.3 | 8.4 | 9.5
Other Comprehensive Income (Loss) Before Reclassifications | 0.0 | 0.0 | 0.0 | 0.0
Reclassification from AOCI, Current Period, Tax | 0.0 | (0.1) | (0.3) | (0.6)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | (0.5) | (0.6) | (1.3) | (1.8)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | 0.0 | (0.1) | (0.3) | 0.6
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | (0.5) | (0.6) | (1.3) | (1.8)
Equity, Attributable to Parent, Ending Balance | 7.1 | 7.7 | 7.1 | 7.7
Net Loss on Cash Flow Hedges |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Equity, Attributable to Parent, Beginning Balance | (1.4) | (0.3) | (2.2) | 2.5
Other Comprehensive Income (Loss) Before Reclassifications | 0.6 | 3.5 | 1.4 | 0.7
Reclassification from AOCI, Current Period, Tax | 0.0 | 0.1 | 0.0 | 0.1
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | (0.1) | 0.4 | (0.1) | 0.4
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | 0.2 | 1.0 | (0.2) | (0.2)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | 0.5 | 3.9 | 1.3 | 1.1
Equity, Attributable to Parent, Ending Balance | (0.9) | 3.6 | (0.9) | 3.6
Change in Discount Rate on Future Life Policyholder Benefits |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Equity, Attributable to Parent, Beginning Balance |  | 358.0 | 380.3 | 160.6
Other Comprehensive Income (Loss) Before Reclassifications | (54.0) | (165.2) | (64.3) | 32.2
Reclassification from AOCI, Current Period, Tax | 0.0 | 0.0 | 0.0 | 0.0
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 0.0 | 0.0 | 0.0 | 0.0
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | (14.4) | (43.9) | (17.1) | (8.6)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | (54.0) | (165.2) | (64.3) | 32.2
Equity, Attributable to Parent, Ending Balance | 316.0 | 192.8 | 316.0 | 192.8
Accumulated Other Comprehensive (Loss) Income |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Equity, Attributable to Parent, Beginning Balance | (257.7) | (317.3) | (304.5) | (360.8)
Other Comprehensive Income (Loss) Before Reclassifications | 26.2 | 64.9 | 77.5 | 101.3
Reclassification from AOCI, Current Period, Tax | 1.4 | 0.0 | 0.1 | 1.6
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 4.4 | (0.1) | (0.1) | 7.0
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | 8.0 | 16.9 | 19.8 | (28.1)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | 30.6 | 64.8 | 77.4 | 108.3
Equity, Attributable to Parent, Ending Balance | $ (227.1) | $ (252.5) | $ (227.1) | $ (252.5)

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