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Insurance Expenses (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Insurance Expenses [Abstract]      
Commissions $ 817.6 $ 745.8 $ 708.8
General Expenses 339.5 307.4 278.0
Taxes, Licenses and Fees 104.3 94.2 93.5
Total Costs Incurred 1,261.4 1,147.4 1,080.3
Policy Acquisition Costs:      
Deferred (772.6) (693.4) (475.2)
Amortized 684.3 641.8 408.3
Net Policy Acquisition Costs Amortized (88.3) (51.6) (66.9)
Amortization of VOBA 45.0 4.7 6.3
Insurance Expenses $ 1,218.1 $ 1,100.5 $ 1,019.7