v3.26.1
Securitization and Variable Interest Entities - Narrative (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2026
USD ($)
entity
trust
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
entity
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Number of consolidated VIEs (in entities) | entity 1   1
Number of consolidated VIEs exercised securitization clean up calls (in entities) | entity 0    
Number of nonconsolidated entities in which investments are held | entity 23   22
Number of nonconsolidated trusts established | trust 2    
Number of nonconsolidated trusts called | trust 1    
Investment, Proportional Amortization Method, Elected, Statement of Financial Position [Extensible Enumeration] Other assets (less allowance for credit losses of $2,682 and $2,998, as of March 31, 2026 and December 31, 2025, respectively)   Other assets (less allowance for credit losses of $2,682 and $2,998, as of March 31, 2026 and December 31, 2025, respectively)
Investments | $ $ 76.9   $ 53.5
Unfunded commitments | $ $ 63.9   $ 47.2
Expected funding term 3 years    
Amortization of the related investments | $ $ 0.0 $ 0.0