Schedule of Segment Reporting Information, by Segment Balance Sheet Item (Detail) - USD ($) $ in Thousands	Jan. 31, 2016	Jul. 31, 2015
Segment Reporting Information [Line Items]
Total assets	$ 1,586,363	$ 1,503,248
Continuing Operations | Corporate
Segment Reporting Information [Line Items]
Total assets	281,051	272,058
Continuing Operations | Operating Segments | Recreational vehicles
Segment Reporting Information [Line Items]
Total assets	1,149,209	1,070,115
Continuing Operations | Operating Segments | Recreational vehicles | Towables
Segment Reporting Information [Line Items]
Total assets	928,841	907,175
Continuing Operations | Operating Segments | Recreational vehicles | Motorized
Segment Reporting Information [Line Items]
Total assets	220,368	162,940
Continuing Operations | Operating Segments | Other
Segment Reporting Information [Line Items]
Total assets	$ 156,103	$ 161,075