SEGMENT INFORMATION - Summarized Financial Information of Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Segment Reporting Information [Line Items]
Revenue from contracts with customers	$ 151,785	$ 177,351	$ 477,766	$ 617,956
Operating (loss) income	(18,998)	1,067	(3,242)	22,982
Total other expense	(7,611)	(5,741)	(27,419)	(23,878)
Loss before income taxes	(26,609)	(4,674)	(30,661)	(896)
Direct Marketing
Segment Reporting Information [Line Items]
Revenue from contracts with customers	102,351	98,284	299,214	354,404
Supply Chain
Segment Reporting Information [Line Items]
Revenue from contracts with customers	49,434	79,067	178,552	263,552
Operating segments
Segment Reporting Information [Line Items]
Operating (loss) income	(17,018)	3,494	3,796	31,187
Operating segments | Direct Marketing
Segment Reporting Information [Line Items]
Revenue from contracts with customers	102,351	98,284	299,214	354,404
Operating (loss) income	(16,484)	(3,041)	(5,778)	12,379
Operating segments | Supply Chain
Segment Reporting Information [Line Items]
Revenue from contracts with customers	49,434	79,067	178,552	263,552
Operating (loss) income	(534)	6,535	9,574	18,808
Corporate
Segment Reporting Information [Line Items]
Operating (loss) income	$ (1,980)	$ (2,427)	$ (7,038)	$ (8,205)