v3.26.3
Employee Benefit Plans - Net Periodic Pension Cost (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 152 $ 275 $ 820 $ 967
Interest cost 1,827 1,905 5,334 5,555
Expected return on plan assets (2,930) (2,790) (8,694) (8,262)
Recognized net actuarial loss 0 52 0 52
Net periodic pension benefit $ (951) $ (558) $ (2,540) $ (1,688)
Weighted-average assumptions:        
Discount rate 5.67% 5.77% 5.67% 5.77%
Expected return on assets 6.00% 6.15% 6.00% 6.15%
Prior to Age 40 [Member]        
Weighted-average assumptions:        
Rate of Compensation increase 6.00% 6.00% 6.00% 6.00%
Ages 40-49 [Member]        
Weighted-average assumptions:        
Rate of Compensation increase 5.50% 5.50% 5.50% 5.50%
Ages 50-54 [Member]        
Weighted-average assumptions:        
Rate of Compensation increase 5.00% 5.00% 5.00% 5.00%
Ages 55-64 [Member]        
Weighted-average assumptions:        
Rate of Compensation increase 4.00% 4.00% 4.00% 4.00%
Otherwise [Member]        
Weighted-average assumptions:        
Rate of Compensation increase 3.00% 3.00% 3.00% 3.00%