XML 62 R50.htm IDEA: XBRL DOCUMENT v3.22.0.1
Employee Benefit Plans - Summary of Components of Net Periodic Benefit Cost and Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):      
Tax expense related to benefit plans included in other comprehensive income $ 9,000 $ 2,000 $ (6,000)
Defined benefit pension plans      
Net periodic benefit cost (credit):      
Service cost 4,925 4,348 4,479
Interest cost 10,094 15,079 19,309
Expected return on plan assets (18,531) (19,694) (21,714)
Amortization of prior service cost (credit) 163 303 64
Recognized actuarial loss (gain) 11,177 9,584 7,585
Settlement loss 6,982 0 0
Curtailment loss 48 50 92
Net periodic benefit cost 14,858 9,670 9,815
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):      
Net actuarial (gain) loss (42,671) 12,624 28,740
Prior service (credit) cost 204 269 26
Amortization of prior service (cost) credit (163) (303) (64)
Total recognized in other comprehensive loss (42,630) 12,590 28,702
Total recognized in net periodic benefit (credit) cost and other comprehensive income (loss) (27,772) 22,260 38,517
Postretirement benefit plans      
Net periodic benefit cost (credit):      
Service cost 2 1 1
Interest cost 78 139 201
Expected return on plan assets 0 0 0
Amortization of prior service cost (credit) (2,038) (2,038) (2,038)
Recognized actuarial loss (gain) (10) (74) (384)
Settlement loss 0 0 0
Curtailment loss 0 0 0
Net periodic benefit cost (1,968) (1,972) (2,220)
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):      
Net actuarial (gain) loss (605) 850 1,870
Prior service (credit) cost 0 0 0
Amortization of prior service (cost) credit 2,038 2,038 2,038
Total recognized in other comprehensive loss 1,433 2,888 3,908
Total recognized in net periodic benefit (credit) cost and other comprehensive income (loss) $ (535) $ 916 $ 1,688