v3.26.1
Share-Based Payments - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
May 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment and LTIP expense   $ 6.9 $ 14.6
Total stock compensation expense   61.5  
Accrued expenses and other payables [1]   $ 317.1 237.2
Grant date fair value (in USD per share) $ 30    
Nonvested award, cost not yet recognized, period for recognition   2 years 2 months 12 days  
2025 Equity and Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total stock compensation expense   $ 39.2  
Number of shares authorized   3,633,333  
Number of shares available for grant, as replacement awards   1,306,139  
Shares withheld to satisfy tax withholding   (301,106)  
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture   1,005,033  
2025 Equity and Incentive Plan- Incentive Share Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of options granted   626,727  
Retention shares or units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total stock compensation expense   $ 19.1 4.8
Restricted Stock Units (RSUs) | 2025 Equity and Incentive Plan - All Employee Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted to employees 158,997    
Restricted Stock Units (RSUs) | 2025 Equity and Incentive Plan - Senior Employees      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Grant date fair value (in USD per share) $ 30    
Number of RSUs, nonvested 623,953    
Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total stock compensation expense   2.6 9.8
Long-term incentive plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Accrued expenses and other payables   17.9 $ 20.0
Retention Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total stock compensation expense   $ 4.3  
[1] Includes amounts due to related parties of $2.0 million for investment management fees (2024 — $4.0 million), and $Nil for management consulting fees (2024 — $1.3 million).