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Long Term Debt (Tables)
12 Months Ended
Dec. 31, 2023
Debt Disclosure [Abstract]  
Schedule of Debt
The following table sets forth the principal amount of the debt issued as well as the unamortized discount and debt issuance costs at December 31, 2023 and 2022:
December 31, 2023December 31, 2022
PrincipalUnamortized
discount and
debt issuance
costs
PrincipalUnamortized
discount and
debt issuance
costs
4.875% Senior notes due 2030
$330.0 $(5.0)$330.0 $(5.6)
6.625% Fixed Rate Reset Junior Subordinated notes due 2041
125.0 (1.8)125.0 (1.9)
Total$455.0 $(6.8)$455.0 $(7.5)
Schedule of Stock by Class
December 31, 2023December 31, 2022
Preference securities, par value $0.01 per share
Authorized1,000,000 1,000,000 
Issued and outstanding:
9% cumulative preference shares
5,835 5,835 
The following sets out the number and par value of shares authorized, issued and outstanding:
December 31, 2023December 31, 2022
Common shares, par value $0.01 per share
Authorized600,000,000 600,000,000 
Issued and outstanding
Common shares 117,914,754 194,545,370