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Restructuring and Related Activities (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) ft² | Dec. 31, 2021 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance and termination costs | $ 0.0 | $ 0.4 | $ (0.1) |
Lease Restructuring Cost | (5.7) | (1.2) | 85.4 |
Other Restructuring Costs | 0.7 | 0.9 | 17.1 |
Restructuring Charges | (5.0) | 0.1 | $ 102.4 |
Area of Real Estate Property | ft² |  |  | 500,000 |
Non-cash Items [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance and termination costs | 0.0 | 0.0 | $ 0.0 |
Cash Payments [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance and termination costs | 0.2 | 2.1 | 7.0 |
Employee Severance [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Reserve | 0.4 | 0.6 | 2.3 | $ 9.4
Lease impairment costs [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Reserve | $ 0.0 | $ 0.0 | $ 0.0 |

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