XML 90 R75.htm IDEA: XBRL DOCUMENT v3.20.4
Accrued Expenses And Other Long-term Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Accounts Payable And Accrued Liabilities Current [Abstract]    
Taxes other than income $ 9,117 $ 7,881
Capital expenditures and maintenance expenses 5,598 1,358
Current portion of environmental liabilities 1,710 1,520
Current portion of interest rate swap contracts [1] 1,028  
Professional fees 916 880
Interest 537 992
Other 4,361 3,751
Total accrued expenses and other current liabilities $ 23,267 $ 16,382
[1]

See Note 14 for information regarding the interest rate swap contracts entered into in 2020.