Description of Business - Additional Information (Detail)	12 Months Ended
Oct. 28, 2016 Segment	Jul. 21, 2016 $ / shares
Business Acquisition [Line Items]
Number of business segments \| Segment	2
Merger Agreement with Komatsu America [Member]
Business Acquisition [Line Items]
Share price, cancelled and converted into cash (USD per share) \| $ / shares		$ 28.30

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration