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Restructuring and Impairment Activities - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Jan. 31, 2024
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expense: | $ 11.8 | $ 0.5 | $ 26.2 | $ 1.3 |
Impairment expense: | 7.2 | 0.0 | 7.2 | 0.0 |
Other Current Assets |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Asset, held-for-sale | 10.3 | 10.5 | 10.3 | 10.5 |
Severance and termination benefits |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expense: | 3.0 |  | 15.7 |  |
Restructuring expected cost |  |  |  |  | $ 1.0
Severance and termination benefits | Unallocated |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expense: | 0.3 |  | 3.3 |  |
Closed Facility |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | 5.2 |  | 5.2 |  |
Asset impairment |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment expense: | 7.2 | 0.0 | 7.2 | 0.0 |
FAM |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expense: | 0.8 | 0.5 | 1.6 | 1.2 |
FAM | Severance and termination benefits |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expense: | 0.5 |  | 2.9 |  |
FAM | Closed Facility | Minimum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expected cost | 1.0 |  | 1.0 |  |
FAM | Closed Facility | Maximum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expected cost | 1.5 |  | 1.5 |  |
SAS |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expense: | 8.0 | $ 0.0 | 8.9 | 0.1 |
Restructuring charges | 5.5 |  | 5.5 |  |
SAS | Severance and termination benefits |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expense: | 2.2 |  | 9.5 |  |
SAS | Closed Facility |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | 1.7 |  | 1.7 |  |
SAS | Closed Facility | Minimum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expected cost | 1.5 |  | 1.5 |  |
SAS | Closed Facility | Maximum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expected cost | $ 2.0 |  | 2.0 |  |
SAS | Corporate |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring expense: |  |  | $ 0.0 | $ 0.0 |

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