Accounts Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of period	$ 3,963	$ 2,963	$ 2,083
Provisions	18,221	1,701	1,576
Net Deductions	4,604	701	696
Balance at end of period	$ 17,580	$ 3,963	$ 2,963
Two Unidentified Customers | Customer Concentration Risk | Accounts Receivable
Concentration Risk [Line Items]
Net accounts receivable percentage	23.00%
One Unidentified Customer | Customer Concentration Risk | Accounts Receivable
Concentration Risk [Line Items]
Net accounts receivable percentage		10.40%
APC Region Customer
Allowance for Doubtful Accounts Receivable [Roll Forward]
Provisions	$ 13,700