Schedule of Segment Reporting Information, by Segment Balance Sheet Item (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013
Segment Reporting Information [Line Items]
Total assets	$ 1,503,248	$ 1,408,718	$ 1,328,268
Depreciation and amortization expense, total	31,381	25,834	24,987
Capital acquisitions	43,055	30,438	24,190
Continuing Operations | Corporate
Segment Reporting Information [Line Items]
Total assets	272,058	370,450	305,981
Depreciation and amortization expense, total	1,054	724	322
Capital acquisitions	3,271	7,519	8,143
Continuing Operations | Operating Segments | Recreational vehicles
Segment Reporting Information [Line Items]
Total assets	1,070,115	1,038,268	885,781
Depreciation and amortization expense, total	28,649	24,551	21,928
Capital acquisitions	39,348	22,856	15,627
Continuing Operations | Operating Segments | Recreational vehicles | Towables
Segment Reporting Information [Line Items]
Total assets	907,175	868,017	759,658
Depreciation and amortization expense, total	26,296	22,192	19,888
Capital acquisitions	35,039	16,914	13,954
Continuing Operations | Operating Segments | Recreational vehicles | Motorized
Segment Reporting Information [Line Items]
Total assets	162,940	170,251	126,123
Depreciation and amortization expense, total	2,353	2,359	2,040
Capital acquisitions	4,309	5,942	1,673
Continuing Operations | Operating Segments | Other
Segment Reporting Information [Line Items]
Total assets	161,075
Depreciation and amortization expense, total	1,678
Capital acquisitions	$ 436
Discontinued Operations
Segment Reporting Information [Line Items]
Total assets			136,506
Depreciation and amortization expense, total		559	2,737
Capital acquisitions		$ 63	$ 420