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Reinsurance (Tables)
 12 Months Ended
Dec. 31, 2022
Reinsurance [Abstract]  
Schedule Of Reinsurance Activity
A summary of reinsurance activity is as follows:

(In millions)For the Years Ended December 31,
 202220212020
Net assumed written premiums$72.5 $56.4 $61.7 
Net premiums earned62.7 60.3 57.3 
Provision for claims46.4 38.8 37.9 
Amortization of capitalized acquisition costs1.5 1.4 1.4 
Schedule Of Trust Assets And Reinsurance Liabilities
The trust assets and related reinsurance liabilities are as follows:
(In millions) As of December 31,
 Balance Sheet location20222021
Trust assetsRestricted cash and cash equivalents$0.4 $0.3 
Trust assetsRestricted securities available for sale72.3 62.1 
Unearned premiumAccounts payable and accrued liabilities54.4 44.6 
Claims reserve (1)Accounts payable and accrued liabilities3.1 2.4 

(1)    The claims reserve represents our liability for incurred-but-not-reported claims and is estimated based on historical claims experience.
Cumulative Incurred Claims
The following tables present information about incurred and paid claims development for the five-year period ended December 31, 2022:

(Dollars in millions)
Cumulative Incurred ClaimsAs of December 31, 2022
Incident YearAs of December 31,Claims ReserveCumulative Number of Reported Claims
20182019202020212022
2018$25.8 $25.7 $25.8 $25.8 $25.8 $— 22,310 
201930.1 30.2 30.2 30.2 — 24,422 
202037.7 37.6 37.7 — 28,208 
202138.9 39.2 — 28,829 
202246.0 3.1 29,205 
Total$178.9 $3.1 132,974 
Cumulative Paid Claims
(In millions)Cumulative Paid Claims
As of December 31,
Incident Year20182019202020212022
2018$24.2 $25.7 $25.8 $25.8 $25.8 
201928.3 30.2 30.2 30.2 
202035.4 37.6 37.7 
202136.5 39.2 
202242.9 
Total$175.8 
Percentage Payout Of Incurred Claims
Average Annual Percentage Payout of Incurred Claims by Age
Claim Age (Years)12345
Payout Percentage93.5 %6.3 %0.2 %— %— %