Schedule of Segment Reporting Information, by Segment Balance Sheet Item (Detail) - USD ($) $ in Thousands	Oct. 31, 2015	Jul. 31, 2015
Segment Reporting Information [Line Items]
Total assets	$ 1,572,383	$ 1,503,248
Continuing Operations | Corporate
Segment Reporting Information [Line Items]
Total assets	268,984	272,058
Continuing Operations | Operating Segments | Recreational vehicles
Segment Reporting Information [Line Items]
Total assets	1,148,123	1,070,115
Continuing Operations | Operating Segments | Recreational vehicles | Towables
Segment Reporting Information [Line Items]
Total assets	951,863	907,175
Continuing Operations | Operating Segments | Recreational vehicles | Motorized
Segment Reporting Information [Line Items]
Total assets	196,260	162,940
Continuing Operations | Operating Segments | Other
Segment Reporting Information [Line Items]
Total assets	$ 155,276	$ 161,075