v3.22.2.2
Revision of Prior Period Financial Statements - Revised Consolidated Statements of Cash Flows (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Net Income Attributable to Stockholders $ 7.3 $ 879.8 $ 208.5 $ 1,240.9
Change in insurance policy reserves and expenses     2,388.4 1,425.8
Change in reinsurance recoverable     (1,397.2) (518.7)
Change in reinsurance balance payable     71.8 37.2
Change in deferred acquisition costs and value of business acquired     (514.1) (706.6)
Change in taxes receivable       (123.4)
Other     (17.9) (17.0)
Net cash provided by operating activities     $ 319.8 527.0
As Reported        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Net Income Attributable to Stockholders   882.4   1,248.8
Change in insurance policy reserves and expenses       1,427.8
Change in reinsurance recoverable       (517.7)
Change in reinsurance balance payable       31.2
Change in deferred acquisition costs and value of business acquired       (712.1)
Change in taxes receivable       (122.7)
Other       (17.1)
Net cash provided by operating activities       527.0
Adjustment        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Net Income Attributable to Stockholders   $ (2.6)   (7.9)
Change in insurance policy reserves and expenses       (2.0)
Change in reinsurance recoverable       (1.0)
Change in reinsurance balance payable       6.0
Change in deferred acquisition costs and value of business acquired       5.5
Change in taxes receivable       (0.7)
Other       0.1
Net cash provided by operating activities       $ 0.0