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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Difference Between Federal Statutory Rate and Effective Tax Rate (Detail)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Accounting Policies [Abstract]        
Tax at statutory rate 21.00% 21.00% 21.00% 21.00%
Tax effect of:        
Change in Louisiana tax law 43.10% 0.00% 8.30% 0.00%
Valuation allowance on deferred tax assets (58.30%) 1.50% (13.30%) 1.00%
State income taxes, net of federal benefit (14.00%) 5.20% (4.70%) 4.30%
Nondeductible stock-based compensation (0.90%) (1.00%) (0.30%) (0.80%)
Other 0.00% 0.00% 0.00% 0.10%
Effective tax rate (9.10%) 26.70% 11.00% 25.60%