Taxes (Tables)

9 Months Ended

Jul. 31, 2018

Income Tax Disclosure [Abstract]

Provision for Income Taxes and Effective Tax Rates

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

	Three Months Ended   July 31,						Nine Months Ended   July 31,
	2018			2017			2018			2017
	(in thousands)
Income before income taxes	$	71,893		$	112,791		$	311,295		$	283,172
Provision (benefit) for income taxes	$	(7,516	)	$	(3,960	)	$	133,105		$	26,527
Effective tax rate	(10.5		)%	(3.5		)%	42.8		%	9.4		%