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OTHER INFORMATION - Components of Other Long-Term Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Other Income and Expenses [Abstract]    
Unrecognized tax benefits $ 18,183 $ 20,334
Asset retirement obligation 3,951 3,722
Non-qualified plan liabilities 12,265 11,343
Deferred income 22,018 22,588
Other 14,800 123
Total other long-term liabilities $ 71,217 $ 58,110