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Schedule of Segment Reporting Information, by Segment Balance Sheet Item (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 31, 2019 | Jul. 31, 2018 | Jul. 31, 2017
Segment Reporting Information [Line Items] |  |  |
Total assets | $ 5,660,446 | $ 2,778,665 | $ 2,557,931
Depreciation and Intangible amortization expense, total | 148,777 | 93,223 | 98,258
Capital acquisitions | 127,245 | 137,306 | 117,755
Operating Segments | Recreational vehicles |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 5,040,949 | 2,147,191 | 2,035,790
Depreciation and Intangible amortization expense, total | 136,463 | 80,764 | 84,961
Capital acquisitions | 122,153 | 119,964 | 114,478
Operating Segments | Recreational vehicles | North American [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 1,963,145 | 2,147,191 | 2,035,790
Depreciation and Intangible amortization expense, total | 81,582 | 80,764 | 84,961
Capital acquisitions | 86,500 | 119,964 | 114,478
Operating Segments | Recreational vehicles | European [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 3,077,804 | 0 | 0
Depreciation and Intangible amortization expense, total | 54,881 | 0 | 0
Capital acquisitions | 35,653 | 0 | 0
Operating Segments | Recreational vehicles | North American Towables |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 1,516,519 | 1,654,361 | 1,535,029
Depreciation and Intangible amortization expense, total | 67,751 | 68,964 | 75,568
Capital acquisitions | 69,321 | 85,304 | 72,801
Operating Segments | Recreational vehicles | North American Motorized |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 446,626 | 492,830 | 500,761
Depreciation and Intangible amortization expense, total | 13,831 | 11,800 | 9,393
Capital acquisitions | 17,179 | 34,660 | 41,677
Corporate and Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 163,897 | 167,965 | 156,996
Depreciation and Intangible amortization expense, total | 10,647 | 10,861 | 11,967
Capital acquisitions | 3,493 | 8,440 | 1,157
Corporate, Non-Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 455,600 | 463,509 | 365,145
Depreciation and Intangible amortization expense, total | 1,667 | 1,598 | 1,330
Capital acquisitions | $ 1,599 | $ 8,902 | $ 2,120

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