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Income Taxes (Tables)
 6 Months Ended
Jul. 31, 2025
Income Tax Disclosure [Abstract]  
Schedule of Provision for Income Taxes
The following table provides details of the provision for income taxes:
Three Months Ended July 31, Six Months Ended July 31,
2025202420252024
(in thousands, except percentages)
Income before provision for income taxes$448,162 $292,889 $763,927 $584,853 
Provision for income taxes89,570 73,874 150,732 149,530 
Effective tax rate20.0 %25.2 %19.7 %25.6 %