XML 107 R92.htm IDEA: XBRL DOCUMENT v3.22.0.1
Insurance Liabilities - Liability for Unpaid Claims (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Change in unpaid claims      
Balance at beginning of period, unpaid claims $ 2,534.9 $ 2,365.5 $ 2,252.7
Balance at beginning of period, reinsurance recoverables for unpaid claims 436.9 403.8 404.3
Net balance at beginning of period, unpaid claims 2,098.0 1,961.7 1,848.4
Incurred:      
Incurred: Current year 1,572.5 1,376.8 1,361.3
Incurred: Prior years 7.2 26.6 0.8
Total incurred 1,579.7 1,403.4 1,362.1
Payments:      
Payments: Current year 1,025.0 863.8 869.4
Payments: Prior years 435.4 403.3 379.4
Total payments 1,460.4 1,267.1 1,248.8
Net balance at end of period, unpaid claims 2,217.3 2,098.0 1,961.7
Balance at end of period, reinsurance recoverables for unpaid claims 442.1 436.9 403.8
Balance at end of period, unpaid claims 2,659.4 2,534.9 2,365.5
Amount not included in the rollforward above:      
Claim adjustment expense liabilities $ 59.5 $ 57.8 $ 57.9