Taxes (Tables)

6 Months Ended

Apr. 30, 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   April 30,						Six Months Ended   April 30,
	2017			2016			2017			2016
	(in thousands)
Income before income taxes	$	62,020		$	97,223		$	170,381		$	161,565
Provision (benefit) for income taxes	$	8,714		$	27,847		$	30,487		$	32,154
Effective tax rate	14.1		%	28.6		%	17.9		%	19.9		%