Segment Information - Additional Information (Details)	12 Months Ended
	Oct. 25, 2013 Segment
Segment Reporting Information [Line Items]
Number of Reportable Segments	2
LeTourneau Technologies, Inc.
Segment Reporting Information [Line Items]
Business Acquisition, Effective Date of Acquisition	Jun. 22, 2011
International Mining Machinery Holdings Ltd.
Segment Reporting Information [Line Items]
Business Acquisition, Effective Date of Acquisition	Dec. 29, 2011