XML 71 R58.htm IDEA: XBRL DOCUMENT v3.20.2
Other Noncurrent Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Payables and Accruals [Abstract]      
Benefit plan liabilities $ 209,501 $ 212,280 $ 184,220
Noncurrent income tax liabilities $ 125,944 $ 125,515 $ 138,018