Annual report pursuant to Section 13 and 15(d)

Accrued Liabilities Accrued Liabilities (Details)

v3.20.4
Accrued Liabilities Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Payables and Accruals [Abstract]    
Compensation and bonus $ 35,251 $ 40,374
Interest 11,573 19,110
Property tax 2,656 2,250
Environmental reserves 4,309 4,548
Income taxes 869 4,900
Commissions and rebates 854 1,459
Pension, postretirement and supplemental retirement plans 1,852 1,825
Derivative liabilities 1,954 420
Other 14,493 10,524
Accrued Liabilities, Current, Total $ 73,811 $ 85,410