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Schedule III-Supplementary Insurance Information
12 Months Ended
Dec. 31, 2021
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]  
Schedule III-Supplementary Insurance Information
Schedule III — Supplementary Insurance Information
 Future
policy
benefits and
expenses
Unearned
premiums
Claims and
benefits
payable
Premium
revenues
Net
investment
income
Benefits
claims, losses
and
settlement
expenses
Other
operating
expenses*
 (in millions)
2021$333.2 $2.2 $101.0 $0.5 $1.3 $0.2 $0.5 
2020$328.7 $2.3 $93.5 $0.6 $1.6 $0.4 $1.0 
2019$326.4 $2.5 $89.7 $0.7 $1.9 $0.3 $0.6 
* Includes underwriting, general and administrative expenses.