Taxes (Tables)

6 Months Ended

Apr. 30, 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   April 30,						Six Months Ended   April 30,
	2018			2017			2018			2017
	(in thousands)
Income before income taxes	$	119,299		$	62,020		$	239,402		$	170,381
Provision (benefit) for income taxes	$	16,827		$	8,714		$	140,621		$	30,487
Effective tax rate	14.1		%	14.1		%	58.7		%	17.9		%