Residual Commission Buyouts (Details) - USD ($) $ in Millions |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Residual Commission Buyouts [Line Items] | ||
| Total | $ 970.1 | |
| Residual commission buyouts, net | ||
| Residual Commission Buyouts [Line Items] | ||
| Gross Carrying Value | 352.2 | $ 351.2 |
| Accumulated Amortization | (216.3) | (194.0) |
| Total | $ 135.9 | $ 157.2 |
| Residual commission buyouts from asset acquisitions | ||
| Residual Commission Buyouts [Line Items] | ||
| Weighted Average Amortization Period (in years) | 4 years | 4 years |
| Gross Carrying Value | $ 338.3 | $ 337.3 |
| Accumulated Amortization | (212.0) | (190.1) |
| Total | $ 126.3 | $ 147.2 |
| Residual commission buyouts from business combinations | ||
| Residual Commission Buyouts [Line Items] | ||
| Weighted Average Amortization Period (in years) | 8 years | 8 years |
| Gross Carrying Value | $ 13.9 | $ 13.9 |
| Accumulated Amortization | (4.3) | (3.9) |
| Total | $ 9.6 | $ 10.0 |