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Reinsurance - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Reinsurance Disclosures [Abstract]        
Benefits and claims ceded to reinsurers $ 339.1 $ 435.3 $ 842.9 $ 987.9