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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, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Accounting Policies [Abstract]
Tax at statutory rate	21.00%	21.00%	21.00%	21.00%
Tax effect of:
State income taxes, net of federal benefit	(1.10%)	10.20%	(0.50%)	7.80%
Noncontrolling interest	(2.80%)	0.00%	(2.80%)	0.00%
Research and development and other income tax credits	(5.60%)	0.00%	(6.80%)	0.00%
Nondeductible stock-based compensation	2.10%	(0.20%)	1.20%	(0.90%)
Valuation allowance on deferred tax assets	0.00%	0.00%	(0.60%)	(0.20%)
Other	0.00%	5.40%	(0.30%)	2.00%
Effective tax rate	13.60%	36.40%	11.20%	29.70%

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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