Taxes (Tables)

9 Months Ended

Jul. 31, 2017

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,
	2017			2016			2017			2016
	(in thousands)
Income before income taxes	$	112,791		$	85,231		$	283,172		$	246,796
Provision (benefit) for income taxes	$	(3,960	)	$	20,513		$	26,527		$	52,667
Effective tax rate	(3.5		)%	24.1		%	9.4		%	21.3		%