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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Difference Between Federal Statutory Rate and Effective Tax Rate (Detail)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Accounting Policies [Abstract]        
Tax at statutory rate 21.00% 21.00% 21.00% 21.00%
Tax effect of:        
Valuation allowance on deferred tax assets 10.90% (0.80%) (7.60%) 5.20%
State income taxes, net of federal benefit 4.10% (2.50%) 1.30% (30.00%)
Nondeductible stock-based compensation 0.30% 0.80% 0.10% 2.90%
Change in Louisiana tax law (8.80%) 0.00% 9.00% 0.00%
Other 0.00% 0.20% 0.00% 1.60%
Effective tax rate 27.50% 18.70% 23.80% 0.70%