v3.26.1
Business Segment Reporting - Schedule of Depreciation and Amortization by Segment (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting Information [Line Items]      
Amortization of debt issuance costs, discount and premium $ 22.2 $ 11.6  
Amortization of intangibles 0.5 $ 0.5  
Total Assets 12,350.3   $ 16,170.6
Servicing | Operating Segments      
Segment Reporting Information [Line Items]      
Total Assets 9,880.3   14,683.5
Originations | Operating Segments      
Segment Reporting Information [Line Items]      
Total Assets 2,116.0   1,252.3
Corporate Segment and Other Operating Segment [Member] | Operating Segments      
Segment Reporting Information [Line Items]      
Total Assets $ 354.0   $ 234.8