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Restructuring Activities - Schedule of CTO2Grow Program Restructuring Spend Estimated (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Total Restructuring Program |  |  |  |
Other associated costs | $ 6.4 | $ 6.4 | $ 12.8 | $ 13.2
Contract terminations | 3.0 | 0.0 | 3.0 | (0.1)
Capital expenditures | 0.4 | $ 0.4 | 1.5 | $ 0.4
CTO2 Grow Program |  |  |  |
Total Restructuring Program |  |  |  |
Costs of reduction in headcount as a result of reorganization |  |  | 90.0 |
Other associated costs |  |  | 45.0 |
Contract terminations |  |  | 20.0 |
Total cash expense |  |  | 155.0 |
Capital expenditures |  |  | 5.0 |
Total estimated cash cost | 160.0 |  | 160.0 |
Total estimated non-cash expense | 39.0 |  | 39.0 |
Total estimated expense | 194.0 |  | 194.0 |
Less Program Activity to Date |  |  |  |
Costs of reduction in headcount as a result of reorganization | (80.0) |  | (80.0) |
Other associated costs | (37.0) |  | (37.0) |
Contract terminations | (18.0) |  | (18.0) |
Total cash expense | (135.0) |  | (135.0) |
Capital expenditures | (4.0) |  | (4.0) |
Total estimated cash cost | (139.0) |  | (139.0) |
Total estimated non-cash expense | (39.0) |  | (39.0) |
Total estimated expense | (174.0) |  | (174.0) |
Remaining Restructuring |  |  |  |
Costs of reduction in headcount as a result of reorganization | 10.0 |  | 10.0 |
Other associated costs | 8.0 |  | 8.0 |
Contract terminations | 2.0 |  | 2.0 |
Total cash expense | 20.0 |  | 20.0 |
Capital expenditures | 1.0 |  | 1.0 |
Total estimated cash cost | 21.0 |  | 21.0 |
Total estimated non-cash expense | 0.0 |  | 0.0 |
Total estimated expense | $ 20.0 |  | $ 20.0 |

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