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Defined Contribution and Defined Benefit Retirement Plans - Composition of Pension Plan Assets (Detail) - Pension Plans Defined Benefit [Member] - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | $ 395.6 | $ 486.0 |
Foreign Pension Plans Defined Benefit |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 383.6 | 470.1 | $ 481.8
D E |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 234.0 | 282.9 |
Other. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 17.3 | 18.1 |
U S |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 12.0 | 15.9 | $ 16.1
Fair Value Inputs Level1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 111.1 | 151.6 |
Fair Value Inputs Level1 [Member] | Other. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 0.4 | 0.4 |
Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 14.8 | 9.2 |
Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 259.0 | 310.3 |
Level 3 | D E |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 234.0 | 282.9 |
Level 3 | Other. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 16.9 | 17.7 |
Assets Measured at NAV |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 10.7 | 14.9 |
Local Currency Equities Member | C A |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 0.1 | 0.2 |
Local Currency Equities Member | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 2.3 | 3.1 |
Local Currency Equities Member | Fair Value Inputs Level1 [Member] | C A |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 0.1 | 0.2 |
Local Currency Equities Member | Fair Value Inputs Level1 [Member] | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 2.3 | 3.1 |
Non Local Currency Equities | C A |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 11.0 | 21.9 |
Non Local Currency Equities | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 4.7 | 5.9 |
Non Local Currency Equities | Fair Value Inputs Level1 [Member] | C A |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 11.0 | 21.9 |
Non Local Currency Equities | Fair Value Inputs Level1 [Member] | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 4.7 | 5.9 |
Local Currency Fixed Income | C A |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 72.9 | 89.3 |
Local Currency Fixed Income | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 21.8 | 25.1 |
Local Currency Fixed Income | Fair Value Inputs Level1 [Member] | C A |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 72.9 | 89.3 |
Local Currency Fixed Income | Fair Value Inputs Level1 [Member] | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 7.0 | 15.9 |
Local Currency Fixed Income | Level 2 | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 14.8 | 9.2 |
Other Investment Securities And Cash | C A |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 0.6 | 0.8 |
Other Investment Securities And Cash | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 2.7 | 7.0 |
Other Investment Securities And Cash | U S |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 1.2 | 1.0 |
Other Investment Securities And Cash | Fair Value Inputs Level1 [Member] | C A |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 0.6 | 0.8 |
Other Investment Securities And Cash | Fair Value Inputs Level1 [Member] | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 2.4 | 6.4 |
Other Investment Securities And Cash | Fair Value Inputs Level1 [Member] | U S |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 0.9 | 0.6 |
Other Investment Securities And Cash | Level 3 | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 0.3 | 0.6 |
Other Investment Securities And Cash | Assets Measured at NAV | U S |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 0.3 | 0.4 |
Non Local Currency Fixed Income | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 8.4 | 6.7 |
Non Local Currency Fixed Income | Fair Value Inputs Level1 [Member] | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 8.4 | 6.7 |
Real Estate | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 7.8 | 9.1 |
Real Estate | Level 3 | N O |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 7.8 | 9.1 |
Equity | U S |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 3.8 | 5.6 |
Equity | Fair Value Inputs Level1 [Member] | U S |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 0.3 | 0.4 |
Equity | Assets Measured at NAV | U S |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 3.5 | 5.2 |
Fixed Income | U S |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 7.0 | 9.3 |
Fixed Income | Fair Value Inputs Level1 [Member] | U S |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | 0.1 |  |
Fixed Income | Assets Measured at NAV | U S |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension plan assets | $ 6.9 | $ 9.3 |

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