v3.24.0.1
Income Taxes - Reconciliation of Statutory Income Tax Rate (Detail) - Singapore [Member]
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Income Taxes [Line Items]    
Singapore statutory income tax rate 17.00% 17.00%
Federal and state tax credits 11.50% 3.30%
Permanent differences   0.10%
Changes in reserves for uncertain tax positions (2.80%) 0.40%
Foreign rate differential 7.40% 8.80%
Tax rate change 0.40%  
Return to provision 4.40% (0.90%)
Other 0.10% (0.10%)
Change in deferred tax asset valuation allowance (36.10%) 7.30%
Deferred tax adjustments (0.70%) (36.30%)
Effective income tax rate 1.20% (0.40%)