SEGMENT INFORMATION - Summarized Financial Information of Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
Segment Reporting Information [Line Items]
Revenue from contracts with customers	$ 125,413	$ 169,934
Operating (loss) income	(10,907)	7,075
Total other expense, net	(8,272)	(9,822)
Loss before income taxes	(19,179)	(2,747)
Direct Marketing
Segment Reporting Information [Line Items]
Revenue from contracts with customers	81,059	105,708
Supply Chain
Segment Reporting Information [Line Items]
Revenue from contracts with customers	44,354	64,226
Operating segments
Segment Reporting Information [Line Items]
Operating (loss) income	(9,505)	10,088
Operating segments | Direct Marketing
Segment Reporting Information [Line Items]
Revenue from contracts with customers	81,059	105,708
Operating (loss) income	(11,478)	4,937
Operating segments | Supply Chain
Segment Reporting Information [Line Items]
Revenue from contracts with customers	44,354	64,226
Operating (loss) income	1,973	5,151
Corporate
Segment Reporting Information [Line Items]
Operating (loss) income	$ (1,402)	$ (3,013)