Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Oct. 31, 2017	Oct. 31, 2016
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 5,165	$ 3,201
Preferred Stock, par value (in USD per share)	$ 0.01	$ 0.01
Preferred Stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred Stock, shares outstanding (in shares)	0	0
Common Stock, par value (in USD per share)	$ 0.01	$ 0.01
Common Stock, shares authorized (in shares)	400,000,000	400,000,000
Common Stock, shares outstanding (in shares)	150,445,000	151,454,000
Treasury stock, shares (in shares)	6,817,000	5,811,000