Property and Equipment (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2023 |
Jun. 30, 2022 |
Jun. 30, 2023 |
Jun. 30, 2022 |
Dec. 31, 2022 |
|
| Property, Plant and Equipment [Line Items] | |||||
| Property and equipment, gross | $ 107.7 | $ 107.7 | $ 94.1 | ||
| Less: accumulated depreciation | (50.8) | (50.8) | (42.0) | ||
| Property and equipment, net | 56.9 | 56.9 | 52.1 | ||
| Depreciation expense | 4.7 | $ 4.6 | 9.6 | $ 8.1 | |
| Computer equipment | |||||
| Property, Plant and Equipment [Line Items] | |||||
| Property and equipment, gross | 13.6 | 13.6 | 13.3 | ||
| Furniture and fixtures | |||||
| Property, Plant and Equipment [Line Items] | |||||
| Property and equipment, gross | 3.7 | 3.7 | 3.8 | ||
| Leasehold improvements | |||||
| Property, Plant and Equipment [Line Items] | |||||
| Property and equipment, gross | 10.6 | 10.6 | 9.9 | ||
| Internal use developed software | |||||
| Property, Plant and Equipment [Line Items] | |||||
| Property and equipment, gross | 72.1 | 72.1 | 63.1 | ||
| Construction in progress | |||||
| Property, Plant and Equipment [Line Items] | |||||
| Property and equipment, gross | $ 7.7 | $ 7.7 | $ 4.0 | ||