SEGMENT INFORMATION - Total Assets of Continuing Operations (Detail) - USD ($) $ in Thousands	Oct. 31, 2019	Jul. 31, 2019
Segment Reporting Information [Line Items]
Total assets	$ 797,514	$ 731,563
Operating Segments
Segment Reporting Information [Line Items]
Total assets	775,187	713,102
Operating Segments | Supply Chain
Segment Reporting Information [Line Items]
Total assets	142,609	112,712
Operating Segments | Direct Marketing
Segment Reporting Information [Line Items]
Total assets	632,578	600,390
Corporate-level activity
Segment Reporting Information [Line Items]
Total assets	$ 22,327	$ 18,461