Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

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Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

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Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.

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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Amount of cost for defined contribution plan.

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Defined Contribution and Defined Benefit Retirement Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined contribution benefit plan expense	$ 3.9	$ 3.9	$ 3.4
Pension Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contributions next fiscal year	17.0
Pension Plans Defined Benefit [Member] \| U S
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan funded status of plan	$ 1.2	$ 1.8
Discount rate	5.30%	2.60%
Expected long-term rate of return	4.00%	4.00%	4.50%
Pension Plans Defined Benefit [Member] \| U S \| Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return	7.00%
Target asset allocation	34.00%
Pension Plans Defined Benefit [Member] \| U S \| Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return	5.00%
Target asset allocation	59.00%
Pension Plans Defined Benefit [Member] \| U S \| Multi-asset Strategies and CMRT
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return	4.00%
Pension Plans Defined Benefit [Member] \| U S \| Assets valued at NAV
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	90.00%
Pension Plans Defined Benefit [Member] \| Foreign Pension Plans Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan funded status of plan	$ 119.2	$ 278.0
Discount rate	3.90%	1.50%
Expected long-term rate of return	2.50%	2.40%	2.00%
Pension Plans Defined Benefit [Member] \| C A \| Equity Securities \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	80.00%
Pension Plans Defined Benefit [Member] \| C A \| Equity Securities \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	90.00%
Pension Plans Defined Benefit [Member] \| C A \| Debt Securities \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	10.00%
Pension Plans Defined Benefit [Member] \| C A \| Debt Securities \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	20.00%
Pension Plans Defined Benefit [Member] \| N O \| Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return	7.00%
Target asset allocation	15.00%
Pension Plans Defined Benefit [Member] \| N O \| Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return	4.00%
Target asset allocation	62.00%
Pension Plans Defined Benefit [Member] \| N O \| Real Estate
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return	6.00%
Target asset allocation	14.00%
Pension Plans Defined Benefit [Member] \| N O \| Other Investment Securities And Cash
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return	4.00%
Pension Plans Defined Benefit [Member] \| N O \| Real Estate And Other Investments
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation	17.00%