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Pension Plans - Weighted-Average Asset Allocations of Plan Assets (Detail)
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]    
Weighted-average asset allocations of pension plan assets 100.00% 100.00%
Equity Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Weighted-average asset allocations of pension plan assets 37.00% 49.00%
Debt Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Weighted-average asset allocations of pension plan assets 63.00% 51.00%