Restructuring Charges - Restructuring Reserve and Utilization (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Sep. 30, 2022 |
Jun. 30, 2022 |
Mar. 31, 2022 |
Sep. 30, 2021 |
Jun. 30, 2021 |
Mar. 31, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| Restructuring Reserve [Rollforward] | ||||||||
| Balance at beginning of period | $ 5.7 | $ 7.1 | $ 8.0 | $ 14.2 | $ 10.8 | $ 9.7 | $ 8.0 | $ 9.7 |
| Charge taken during the period | 5.9 | 1.9 | 3.1 | 4.0 | 8.3 | 4.4 | ||
| Payments made during period | (4.9) | (3.3) | (4.0) | (5.3) | (4.9) | (3.3) | (12.3) | (13.5) |
| Balance at end of period | 6.7 | 5.7 | 7.1 | 12.9 | 14.2 | 10.8 | 6.7 | 12.9 |
| Severance and termination | ||||||||
| Restructuring Reserve [Rollforward] | ||||||||
| Balance at beginning of period | 3.0 | 3.8 | 4.7 | 9.0 | 4.9 | 2.6 | 4.7 | 2.6 |
| Charge taken during the period | 5.5 | 1.9 | 2.5 | 4.0 | 8.0 | 4.7 | ||
| Payments made during period | (4.3) | (2.7) | (3.4) | (4.7) | (3.9) | (2.4) | ||
| Balance at end of period | 4.2 | 3.0 | 3.8 | 8.3 | 9.0 | 4.9 | 4.2 | 8.3 |
| Contract termination and other exit costs | ||||||||
| Restructuring Reserve [Rollforward] | ||||||||
| Balance at beginning of period | 2.7 | 3.3 | 3.3 | 5.2 | 5.9 | 7.1 | 3.3 | 7.1 |
| Charge taken during the period | 0.4 | 0.0 | 0.6 | 0.0 | 0.3 | (0.3) | ||
| Payments made during period | (0.6) | (0.6) | (0.6) | (0.6) | (1.0) | (0.9) | ||
| Balance at end of period | $ 2.5 | $ 2.7 | $ 3.3 | $ 4.6 | $ 5.2 | $ 5.9 | $ 2.5 | $ 4.6 |