XML 12 R1.htm IDEA: XBRL DOCUMENT v3.25.1
Cover - shares
 3 Months Ended
Mar. 31, 2025
May 01, 2025
Entity Listings [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2025  
Document Transition Report false  
Entity File Number 001-36052  
Entity Registrant Name SIRIUSPOINT LTD.  
Entity Incorporation, State or Country Code D0  
Entity Tax Identification Number 98-1599372  
Entity Address, Address Line One Point Building  
Entity Address, Address Line Two 3 Waterloo Lane  
Entity Address, City or Town Pembroke  
Entity Address, Postal Zip Code HM 08  
Entity Address, Country BM  
City Area Code 441  
Local Phone Number 542-3300  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   116,588,957
Entity Central Index Key 0001576018  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Common Shares, $0.10 par value    
Entity Listings [Line Items]    
Title of 12(b) Security Common Shares, $0.10 par value  
Trading Symbol SPNT  
Security Exchange Name NYSE  
8.00% Resettable Fixed Rate Preference Shares, Series B, $0.10 par value, $25.00 liquidation preference per share    
Entity Listings [Line Items]    
Title of 12(b) Security 8.00% Resettable Fixed Rate Preference Shares, Series B, $0.10 par value, $25.00 liquidation preference per share  
Trading Symbol SPNT PB  
Security Exchange Name NYSE