Long-Term Debt - Long-Term Debt (Parenthetical) (Detail) - USD ($) $ in Thousands		Oct. 31, 2017	Oct. 31, 2016
Debt Instrument [Line Items]
Debt issuance costs	[1]	$ 3,829	$ 1,782
Other Assets [Member]
Debt Instrument [Line Items]
Debt issuance costs			$ 1,782

[1] Prior to the adoption of new accounting guidance in the first quarter of 2017 (refer to Note 2), debt issuance costs of $1,782 were reflected in the Consolidated Balance Sheets in Other assets at October 31, 2016. Such amounts were reclassified to Long-term debt for comparative purposes.