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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, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Accounting Policies [Abstract]        
Tax at statutory rate 21.00% 21.00% 21.00% 21.00%
Tax effect of:        
Research and development and other income tax credits (20.80%) (1.00%) (5.90%) (20.30%)
State income taxes, net of federal benefit (23.80%) 28.40% (5.30%) (1.20%)
Valuation allowance on deferred tax assets 0.00% 0.00% (3.10%) 0.80%
Noncontrolling interest (9.10%) 10.40% (2.10%) (3.40%)
Nondeductible stock-based compensation 9.30% (6.60%) 2.10% (7.00%)
Other 0.10% (0.20%) 0.00% (3.10%)
Effective tax rate (23.30%) 52.00% 6.70% (13.20%)