ACQUISITION OF IWCO DIRECT - Summary of Preliminary Fair Value of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Jul. 31, 2019	Jul. 31, 2018	Dec. 15, 2017
Business Acquisition [Line Items]
Goodwill	$ 257,128	$ 254,352
IWCO
Business Acquisition [Line Items]
Accounts receivable			$ 47,408
Inventories			32,994
Other current assets			10,624
Property and equipment			88,453
Intangible assets			213,250
Goodwill			257,128
Other assets			3,040
Accounts payable			(31,069)
Accrued liabilities and other current liabilities			(66,158)
Customer deposits			(7,829)
Deferred income taxes			(77,163)
Other long-term liabilities			(1,457)
Total consideration			469,221
As Originally Reported | IWCO
Business Acquisition [Line Items]
Accounts receivable			47,841
Inventories			27,165
Other current assets			7,427
Property and equipment			87,976
Intangible assets			210,920
Goodwill			259,085
Other assets			3,040
Accounts payable			(31,069)
Accrued liabilities and other current liabilities			(35,790)
Customer deposits			(7,829)
Deferred income taxes			(79,918)
Other long-term liabilities			(19,627)
Total consideration			469,221
Adjustments | IWCO
Business Acquisition [Line Items]
Accounts receivable			(433)
Inventories			5,829
Other current assets			3,197
Property and equipment			477
Intangible assets			2,330
Goodwill			(1,957)
Other assets			0
Accounts payable			0
Accrued liabilities and other current liabilities			(30,368)
Customer deposits			0
Deferred income taxes			2,755
Other long-term liabilities			18,170
Total consideration			$ 0