Summary of Significant Accounting Policies - Contract Costs (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
|
| Contract Costs | |||||
| Impairment losses | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.0 | |
| Incremental costs of obtaining a contract | |||||
| Contract Costs | |||||
| Total unamortized costs | 43.2 | 43.2 | $ 32.4 | ||
| Amortization related to contract costs | 4.2 | 3.3 | 11.7 | 9.6 | |
| Costs to fulfill a contract | |||||
| Contract Costs | |||||
| Total unamortized costs | 67.3 | 67.3 | $ 61.6 | ||
| Amortization related to contract costs | $ 4.9 | $ 4.2 | $ 14.3 | $ 11.8 | |