v3.25.4
Income taxes - Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Tax Effect      
Federal statutory tax rate $ 1,885,000    
U.S. tax on foreign subsidiaries (net of credits and deferred taxes) (545,000)    
Foreign-derived intangible income (222,000)    
Other (18,000)    
Credit on foreign taxes imposed on U.S. income (456,000)    
Research and development tax credits (272,000)    
Changes in unrecognized tax benefits (primarily interest) 198,000    
Total provision for income taxes $ 1,265,000 $ 519,000 $ 1,138,000
Effective Tax Rate      
Federal statutory tax rate 21.00% 21.00% 21.00%
Foreign earnings tax rate differential   (5.80%) (5.10%)
Other, net   0.30% 0.50%
U.S. tax on foreign subsidiaries (net of credits and deferred taxes) (6.00%)    
Foreign-derived intangible income (2.50%) (3.00%) (1.30%)
Other (0.20%)    
Credit on foreign taxes imposed on U.S. income (5.00%)    
Credits, primarily federal R&D (3.00%) (5.40%) (3.50%)
Changes in unrecognized tax benefits (primarily interest) 2.20%    
Effective tax rate 14.10% 11.30% 14.50%
Ireland:      
Tax Effect      
Foreign earnings tax rate differential $ 316,000    
Valuation allowance 119,000    
Other $ 22,000    
Effective Tax Rate      
Foreign earnings tax rate differential 3.50%    
Valuation allowance 1.30%    
Other, net 0.20%    
Puerto Rico:      
Tax Effect      
Foreign earnings tax rate differential $ 469,000    
Act 52 - withholding tax 456,000    
Act 52 - income tax $ (968,000)    
Effective Tax Rate      
Foreign earnings tax rate differential 5.20%    
Act 52 - withholding tax 5.10%    
Act 52 - income tax (10.80%)    
Singapore:      
Tax Effect      
Other $ (29,000)    
Tax incentive grant (122,000)    
Pillar Two minimum tax $ 147,000    
Effective Tax Rate      
Other, net (0.30%)    
Tax incentive grant (1.40%)    
Pillar Two minimum tax 1.60%    
Other foreign jurisdictions      
Tax Effect      
Foreign earnings tax rate differential $ 199,000    
Effective Tax Rate      
Foreign earnings tax rate differential 2.20%    
U.S.      
Tax Effect      
Other $ 86,000    
Effective Tax Rate      
Other, net 1.00%