Impairment Charges	9 Months Ended
	Apr. 30, 2020
Discontinued Operations and Disposal Groups [Abstract]
Impairment Charges	Impairment ChargesDuring the three months ended April 30, 2020, the Company completed the previously announced sale of certain assets, including certain trademarks, dealer network and production facilities, utilized to manufacture and sell horse trailers with living quarters. The Company also completed the sale of assets associated with a production facility (one campus composed of multiple buildings totaling approximately 400,000 square feet) utilized to manufacture certain towable RVs. The RV models previously produced at this facility continue to be produced at other, existing Company facilities. Both groups of assets were previously concluded to have met the criteria to be classified as held for sale. The Company previously recognized an aggregate non-cash impairment charge of $10,057 during the three months ended January 31, 2020 related to these assets.