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Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Dec. 31, 2022 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Total revenues |  |  |  |  | $ 1,981.1 | $ 2,026.0 | $ 1,636.9
Foreign currency transaction losses |  |  |  |  | (1.2) | 4.8 | (7.5)
Restricted cash | $ 0.6 | $ 0.6 |  | $ 0.6 | 0.6 | 0.6 | 0.6
Acquisition costs |  |  |  |  | 0.0 | 0.0 | 45.5
Goodwill impairment expense | 0.0 | 0.0 |  | $ 0.0 | $ 0.0 | 401.0 | 0.0
Software useful life |  |  |  |  | 7 years |  |
Amortization of capitalized software |  |  |  |  | $ 3.2 | 5.0 | 4.4
Accumulated amortization of capitalized software costs | $ 33.5 | $ 30.9 |  |  | 33.5 | 30.9 |
Foreign currency translation adjustments (losses) |  |  |  |  | 133.8 |  |
Deferred gain released from AOCL |  |  |  |  | $ 8.9 |  |
Restricted Stock Plan |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Plan performance period (years) |  |  |  |  | 3 years |  |
ATM |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Goodwill impairment expense |  |  | $ 401.0 |  | $ 401.0 |  |
Minimum | Restricted Stock |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Share based compensation vesting period (years) |  |  |  |  | 1 year |  |
Minimum | Customer relationships |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Estimated useful life | 12 years |  |  |  | 12 years |  |
Minimum | Acquired and developed technology |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Estimated useful life | 4 years |  |  |  | 4 years |  |
Maximum | Restricted Stock |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Share based compensation vesting period (years) |  |  |  |  | 3 years |  |
Maximum | Customer relationships |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Estimated useful life | 23 years |  |  |  | 23 years |  |
Maximum | Acquired and developed technology |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Estimated useful life | 23 years |  |  |  | 23 years |  |
Other Operating Income (Expense) |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Foreign currency transaction losses |  |  |  |  | $ 3.0 | 1.7 | 1.8
Royalty |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |
Total revenues |  |  |  |  | $ 0.0 | $ 4.4 | $ 6.9

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