Pension Plans and Postretirement Benefits - Plans' Level 3 Instruments Reconciliation (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Balance at beginning of period	$ 1,310,311
Balance at end of period	921,307	$ 1,310,311
Level 3
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Balance at beginning of period	46,817	0
Purchases	0	45,645
Dispositions	(35,822)	0
Realized gain (loss)	(6,988)	0
Change in unrealized gain (loss)	(652)	652
Translation	(3,355)	520
Balance at end of period	$ 0	$ 46,817

Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Realized Gain

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- Definition

Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Translation

+ References

No definition available.

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- Definition

Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets still held.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount, measured using unobservable input, of decrease in plan asset of defined benefit plan from sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount, measured using unobservable input, of increase (decrease) in plan asset of defined benefit plan from purchase, sale and settlement of trade associated with underlying investment.

+ References

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