Annual report pursuant to Section 13 and 15(d)

Benefit Plans - Accumulated Other Comprehensive Income (Details)

v3.20.4
Benefit Plans - Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Pension Plans | United States    
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax    
Net gain (loss) $ 13,964 $ 10,922
Gross amount recognized 13,964 10,922
Deferred income taxes (18,427) (2,235)
Net amount recognized (4,463) 8,687
Defined Benefit Pension Plans | Foreign    
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax    
Net gain (loss) (6,550) (7,634)
Gross amount recognized (6,550) (7,634)
Deferred income taxes 7,625 2,646
Net amount recognized 1,075 (4,988)
Supplemental Retirement Plans    
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax    
Net gain (loss) (731) 681
Gross amount recognized (731) 681
Deferred income taxes 1,364 (428)
Net amount recognized 633 253
Other Postretirement Benefits Plans    
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax    
Prior service credit 596 828
Net gain (loss) (182) 67
Gross amount recognized 414 895
Deferred income taxes 266 (371)
Net amount recognized $ 680 $ 524