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