SEGMENT INFORMATION - Summarized Financial Information of Capital Expenditures, Depreciation, and Amortization (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
Segment Reporting Information [Line Items]
Capital expenditures	$ 3,615	$ 12,070
Depreciation	23,289	23,075
Amortization expense	20,258	27,255
Operating Segments
Segment Reporting Information [Line Items]
Capital expenditures	3,615	12,070
Depreciation	23,296	23,075
Operating Segments | Direct Marketing
Segment Reporting Information [Line Items]
Capital expenditures	2,397	10,197
Depreciation	19,893	18,964
Amortization expense	20,258	27,255
Operating Segments | Supply Chain
Segment Reporting Information [Line Items]
Capital expenditures	1,218	1,873
Depreciation	$ 3,403	$ 4,111