ACCUMULATED OTHER COMPREHENSIVE INCOME - Accumulated Other Comprehensive Income, Net of Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	$ 6,212	$ 48,818
Foreign currency translation adjustment	(3,699)	4,737
Pension liability adjustments	677	(1,418)
Other comprehensive (loss) income	(3,022)	3,319
Balance	(9,206)	6,212
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	7,162	3,843
Other comprehensive (loss) income	(3,022)	3,319
Balance	4,140	7,162
Foreign currency items
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	9,762	5,025
Foreign currency translation adjustment	(3,699)	4,737
Pension liability adjustments	0	0
Other comprehensive (loss) income	(3,699)	4,737
Balance	6,063	9,762
Pension items
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	(2,600)	(1,182)
Foreign currency translation adjustment	0	0
Pension liability adjustments	677	(1,418)
Other comprehensive (loss) income	677	(1,418)
Balance	$ (1,923)	$ (2,600)