INCOME TAXES - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Income Taxes [Line Items]
Net deferred tax assets	$ 3,184	$ 38,019
Deferred tax liability		931
Change in valuation allowance	$ 28,600	3,600
Ownership percentage	5.00%
Stockholder owning ownership on corporation's securities rolling period	3 years
Deferred employer-paid portion of social security taxes	$ 300
Unrecognized tax benefits, including interest, related to federal, state and foreign taxes	800	2,500
Expected any unrecognized tax benefits to reverse in the next twelve months	200
Increase (decrease) in liabilities for interest expense related to uncertain tax positions		100
Federal
Income Taxes [Line Items]
Operating loss carryforwards	2,200,000
Federal | Expiration Period From July 31,2023 Through July 31, 2038
Income Taxes [Line Items]
Operating loss carryforwards	2,020,000
Federal | Indefinite Carryforward Period
Income Taxes [Line Items]
Operating loss carryforwards	137,800
State
Income Taxes [Line Items]
Operating loss carryforwards	153,700
Foreign
Income Taxes [Line Items]
Operating loss carryforwards	62,600
Foreign net operating loss carryforward with indefinite period	59,700
Federal and State
Income Taxes [Line Items]
Net capital loss carryforwards	34,200
Other Assets
Income Taxes [Line Items]
Net deferred tax assets	100	200
Other Long -term Liabilities
Income Taxes [Line Items]
Deferred tax liability	$ 100	$ 1,200