Schedule of Segment Reporting Information, by Segment Balance Sheet Item (Detail) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2014	Jul. 31, 2013
Segment Reporting Information [Line Items]
Identifiable assets	$ 1,248,597	$ 1,328,268
Continuing Operations | Recreation Vehicles
Segment Reporting Information [Line Items]
Identifiable assets	952,762	885,781
Continuing Operations | Recreation Vehicles | Towables
Segment Reporting Information [Line Items]
Identifiable assets	777,549	759,658
Continuing Operations | Recreation Vehicles | Motorized
Segment Reporting Information [Line Items]
Identifiable assets	175,213	126,123
Continuing Operations | Corporate
Segment Reporting Information [Line Items]
Identifiable assets	295,835	305,981
Discontinued Operations
Segment Reporting Information [Line Items]
Identifiable assets		$ 136,506