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Income Taxes - Reconciliation of Effective Income Tax Rate (Details)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Reconciliation of Effective Income Tax Rate      
Statutory U.S. tax rate 21.00% 21.00% 21.00%
Food Safety divestiture (8.40%) 0.00%
State income taxes - net of federal benefit 3.50% 0.00% 0.90%
International income taxes - net 0.70% (0.40%) (1.20%)
Global Intangible Low Taxed Income (GILTI) (0.40%) 0.70% 0.70%
Foreign Derived Intangible Income (FDII) 1.10% (2.30%) (3.10%)
U.S. research and development credit 0.60% (1.00%) (0.70%)
Reserves for tax contingencies 0.50% 0.00% 0.60%
Employee share-based payments (0.20%) (0.60%)
All other - net 0.80% 0.20% 0.20%
Effective worldwide tax rate (as a percent) 27.80% 9.60% 17.80%