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v3.21.1

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | $ 1,790.1 |
Other comprehensive income (loss) before reclassifications | (129.1) | $ (104.5)
Amounts reclassified from AOCI | 6.4 | 10.7
Other comprehensive income (loss) | (122.7) | (93.8)
Ending balance | 1,692.9 | 1,477.6
Pretax reclassification amounts from AOCI, tax | (1.7) | (2.9)
Net Unrealized Investment Gains (Losses) on Securities |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | 366.3 | 230.4
Other comprehensive income (loss) before reclassifications | (129.1) | (104.5)
Amounts reclassified from AOCI | 6.4 | 10.7
Other comprehensive income (loss) | (122.7) | (93.8)
Ending balance | 243.6 | 136.6
Pretax reclassification amounts from accumulated other comprehensive income (loss) | (8.1) | (13.6)
Net Funded Status of Benefit Plans |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | (11.2) | (10.7)
Other comprehensive income (loss) before reclassifications | 0.0 | 0.0
Amounts reclassified from AOCI | 0.0 | 0.0
Other comprehensive income (loss) | 0.0 | 0.0
Ending balance | (11.2) | (10.7)
Total |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | 355.1 | 219.7
Ending balance | $ 232.4 | $ 125.9

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- Definition Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=121640130&loc=d3e1436-108581 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580 + Details
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