Annual report pursuant to Section 13 and 15(d)

Benefit Plans - Recognized on the Balance Sheet (Details)

v3.20.4
Benefit Plans - Recognized on the Balance Sheet (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Pension Plans | United States    
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position    
Current liability $ 0 $ 0
Noncurrent liability (24,645) (35,979)
Accumulated other comprehensive income (loss) (4,463) 8,687
Net amount recognized (29,108) (27,292)
Defined Benefit Pension Plans | Foreign    
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position    
Current liability (46) (6)
Noncurrent liability (15,975) (15,878)
Accumulated other comprehensive income (loss) 1,075 (4,988)
Net amount recognized (14,946) (20,872)
Supplemental Retirement Plans    
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position    
Current liability (1,039) (1,019)
Noncurrent liability (11,376) (10,633)
Accumulated other comprehensive income (loss) 633 253
Net amount recognized (11,782) (11,399)
Other Postretirement Benefits Plans    
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position    
Current liability (443) (537)
Noncurrent liability (2,924) (2,915)
Accumulated other comprehensive income (loss) 680 524
Net amount recognized $ (2,687) $ (2,928)