Annual report pursuant to Section 13 and 15(d)

Accrued Liabilities Accrued Liabilities (Details)

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Accrued Liabilities Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Payables and Accruals [Abstract]    
Compensation and bonus $ 49,237 $ 52,296
Interest 19,176 21,933
Property tax 3,413 3,018
Environmental reserves (Note 24) 4,972 4,693
Income taxes 6,217 2,123
Commissions and rebates 2,061 1,798
Pension, postretirement and supplemental retirement plans (Note 21) 2,229 2,439
Other 14,849 11,709
Total $ 102,154 $ 100,009