Income Taxes (Tables)

6 Months Ended

Apr. 30, 2021

Income Tax Disclosure [Abstract]

Provision (Benefit) for Incomes Taxes and Effective Tax Rates

The following table presents the provision (benefit) for income taxes and the effective tax rates:

	Three Months Ended   April 30,						Six Months Ended   April 30,
	2021			2020			2021			2020
	(in thousands)
Income before income taxes	$	215,995		$	110,166		$	393,099		$	209,739
Provision (benefit) for income taxes	$	21,193		$	246		$	36,269		$	(4,242)
Effective tax rate	9.8		%	0.2		%	9.2		%	(2.0)		%