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Summary of Significant Accounting Policies - Summary of Accrued Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Accrued Liabilities Current [Abstract]    
Ad valorem and production taxes $ 9,830 $ 6,193
Employee compensation 9,375 6,595
Royalties 23,311 39,969
Short term derivatives 1,362  
Other 9,988 4,152
Total accrued liabilities $ 53,866 $ 56,909