Schedule of Segment Reporting Information, by Segment Balance Sheet Item (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2013	Jul. 31, 2013
Segment Reporting Information [Line Items]
Identifiable assets	$ 1,318,725	$ 1,328,268
Continuing Operations | Recreation Vehicles
Segment Reporting Information [Line Items]
Identifiable assets	929,335	885,781
Continuing Operations | Recreation Vehicles | Towables
Segment Reporting Information [Line Items]
Identifiable assets	794,938	759,658
Continuing Operations | Recreation Vehicles | Motorized
Segment Reporting Information [Line Items]
Identifiable assets	134,397	126,123
Continuing Operations | Corporate
Segment Reporting Information [Line Items]
Identifiable assets	389,390	305,981
Discontinued Operations
Segment Reporting Information [Line Items]
Identifiable assets		$ 136,506