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Income Taxes (Tables)
3 Months Ended
Jan. 31, 2022
Income Tax Disclosure [Abstract]  
Provision (Benefit) for Incomes Taxes and Effective Tax Rates
The following table presented the provision for income taxes and the effective tax rates:
 Three Months Ended 
 January 31,
 20222021
 (in thousands)
Income before income taxes$327,243 $177,104 
Provision for income taxes$13,902 $15,076 
Effective tax rate4.2 %8.5 %