XML 78 R65.htm IDEA: XBRL DOCUMENT v3.21.2
Pension Plans and Other Postretirement Benefits - Domestic and Foreign Pension and Postretirement Defined Benefit Plans (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Defined Benefit Plan Disclosure [Line Items]        
Total net pension and postretirement benefits credit $ (3,986) $ (1,663) $ (12,451) $ (4,975)
Pension Plan        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 1,425 1,202 3,776 3,623
Interest cost 5,113 6,696 15,352 20,049
Expected return on assets (10,893) (10,065) (32,687) (30,156)
Amortization of prior service benefit 29 9 87 27
Total net pension and postretirement benefits credit (4,326) (2,158) (13,472) (6,457)
Postretirement Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 31 27 93 79
Interest cost 309 468 928 1,403
Total net pension and postretirement benefits credit $ 340 $ 495 $ 1,021 $ 1,482