v3.25.4
INCOME TAXES - Effective Income Tax Rate Reconciliation 2025 (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Amount      
U.S Federal Statutory Tax Rate $ 53.5 $ 66.7 $ 36.3
State income taxes before valuation allowance, net of federal tax effect (3.6) (6.2) (9.4)
Statutory tax rate difference between Japan and United States   (25.7) (18.4)
Other   0.1 (0.2)
Global intangible low-taxed income 10.9    
Foreign derived intangible income (4.8) (7.9) (5.1)
Subpart F income inclusions 2.9    
Other 0.8    
Research & development tax credits (17.3) (14.3) (18.7)
Valuation allowance 0.0 11.5 9.0
Share-based payment awards 6.9 5.4 7.4
Executive compensation 2.5    
Changes in Unrecognized Tax Benefits (3.8) (2.3) 11.0
Legal entity divestiture activity 0.0    
Income tax expense (benefit) $ 18.0 $ 28.3 $ (8.4)
Percent      
U.S Federal Statutory Tax Rate 21.00%    
State income taxes before valuation allowance, net of federal tax effect (1.40%)    
Global intangible low-taxed income 4.30%    
Foreign derived intangible income (1.90%)    
Subpart F income inclusions 1.10%    
Other 0.30%    
Research & development tax credits (6.80%)    
Changes in Valuation Allowances 0.00%    
Share-based payment awards 2.70%    
Executive compensation 0.010    
Changes in Unrecognized Tax Benefits (1.50%)    
Legal entity divestiture activity 0.00%    
Effective income tax rate 7.10%    
Japan      
Amount      
Statutory tax rate difference between Japan and United States $ 6.2    
Other $ (2.0)    
Percent      
Statutory tax rate difference between Japan and United States 2.40%    
Other (0.80%)    
Taiwan      
Amount      
Other $ 0.1    
Foreign tax credit (4.2)    
Share-based payment awards $ 4.4    
Percent      
Other 0.10%    
Foreign tax credit (1.60%)    
Share-based payment awards 1.70%    
Singapore      
Amount      
Statutory tax rate difference between Japan and United States $ (42.4)    
Other (0.4)    
Foreign tax credit (22.4)    
Share-based payment awards 5.0    
Other $ 17.1    
Percent      
Statutory tax rate difference between Japan and United States (16.60%)    
Other (0.20%)    
Foreign tax credit (8.80%)    
Share-based payment awards 2.00%    
Other 6.70%    
Other foreign jurisdictions      
Amount      
Statutory tax rate difference between Japan and United States $ 6.6    
Percent      
Statutory tax rate difference between Japan and United States 2.60%    
UNITED STATES      
Amount      
Other $ 0.4    
Other $ 1.6    
Percent      
Other 0.20%    
Other 0.60%