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Share-Based Compensation Plans - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Share-based compensation | $ 26.3 | $ 27.3 | $ 28.7 |
Consideration received from share-based awards | $ 0.0 | $ 0.8 | $ 1.8 |
Number of shares granted | 0 | 0 | 0 |
Number of shares outstanding | 710 | 762,000 | 810,000 | 852,000
Selling and Administrative Expenses |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Share-based compensation | $ 26.3 | $ 27.3 | $ 28.7 |
Non US |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Share-based compensation | $ 1.0 | 1.2 | 1.6 |
Minimum |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Performance period range | 1 year |  |  |
Maximum |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Performance period range | 3 years |  |  |
Employee Stock Option |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Share-based compensation | $ 0.0 | 0.2 | 0.5 |
Share-based payment award vesting period | 4 years |  |  |
Expiration period | 10 years |  |  |
Fair value of options vested | $ 0.7 | $ 1.5 | $ 2.2 |
Employee Stock Option | Minimum |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Purchase price (as a percent) | 100.00% |  |  |
Deferred Stock | In Lieu of Annual Cash Retainer |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Granted (in shares) | 7,232 | 4,716 | 4,463 |
Deferred Stock | Additional Compensation for Board Service |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Share-based compensation | $ 1.5 | $ 1.7 | $ 1.9 |
Share-based payment award vesting period | 1 year |  |  |
Expiration period | 3 years |  |  |
Granted (in shares) | 18,714 | 14,362 | 14,721 |
Restricted Stock |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Share-based compensation | $ 19.4 | $ 18.9 | $ 18.9 |
Total unrecognized compensation cost, net of estimated forfeitures | $ 13.9 |  |  |
Total unrecognized compensation cost, weighted-average period for recognition | 2 years |  |  |
Granted (in shares) | 442,000 | 343,000 | 261,000 |
Forfeited (in shares) | 40,000 | 38,000 | 44,000 |
Term for restrictions to lapse | 5 years |  |  |
Restricted Stock | Additional Compensation for Board Service |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Share-based compensation | $ 12,476.0 | $ 9,060.0 | $ 8,412.0 |
Performance Shares |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Share-based compensation | 5.3 | 6.1 | 7.2 |
Savings Related Share Option Scheme |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Share-based compensation | $ 0.1 | $ 0.4 | $ 0.2 |
Purchase price (as a percent) | 85.00% |  |  |

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