XML 91 R77.htm IDEA: XBRL DOCUMENT v3.22.4
Pension Plans and Postretirement Benefits - Components of Net Periodic Benefit Cost (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 11,800 $ 12,400 $ 11,300
Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 11,116 11,667 10,650
Interest cost 30,924 27,170 37,199
Expected return on plan assets (83,254) (81,778) (77,298)
Amortization of prior service cost 3,257 3,097 3,370
Recognized net actuarial loss (gain) 52,202 (34,690) 6,829
Net periodic benefit cost (income) 14,245 (74,534) (19,250)
Other Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 650 760 642
Interest cost 1,387 1,197 1,612
Expected return on plan assets (2,974) (2,891) (2,691)
Amortization of prior service cost 26 (178) (193)
Recognized net actuarial loss (gain) (5,616) (4,876) (458)
Net periodic benefit cost (income) $ (6,527) $ (5,988) $ (1,088)