v3.26.1
Pension and Postretirement Benefits - Components of Net Periodic Benefit Cost of Pension and Postretirement Benefit Plans (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
U.S. | Pension Plans        
Net periodic benefit cost:        
Service cost $ 0 $ 0 $ 0 $ 0
Interest cost (0) 142 55 350
Expected return on plan assets 0 (67) 0 (130)
Amortization of prior service [(credit) cost] 0 (431) 0 (441)
Recognized net actuarial (gain) loss (65) 5,970 (65) 6,033
Net periodic benefit (gain) cost (65) 5,614 (10) 5,812
U.S. | Postretirement Benefit Plans        
Net periodic benefit cost:        
Service cost 0 6 0 11
Interest cost 7 107 14 216
Expected return on plan assets 0 0 0 0
Amortization of prior service [(credit) cost] (1,039) 9 (2,079) 17
Recognized net actuarial (gain) loss (315) (56) (631) (80)
Net periodic benefit (gain) cost (1,347) 66 (2,696) 164
Foreign Pension Plans        
Net periodic benefit cost:        
Service cost 0 0 0 0
Interest cost 16 75 62 147
Expected return on plan assets 0 (52) (33) (102)
Amortization of prior service [(credit) cost] 0 11 0 21
Recognized net actuarial (gain) loss 136 5 2,232 12
Net periodic benefit (gain) cost $ 152 $ 39 $ 2,261 $ 78