ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES - Components of Other Current Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2022	Jul. 31, 2021
Payables and Accruals [Abstract]
Accrued pricing liabilities	$ 10,295	$ 10,295
Customer postage deposits	10,599	13,452
Other	4,700	4,354
Other current liabilities	$ 25,594	$ 28,101