COMPREHENSIVE INCOME (LOSS) - Accumulated Other Comprehensive Income Items (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2023	Jan. 31, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ (8,524)	$ (13,431)	$ (9,206)	$ 6,212
Foreign currency translation adjustment	4,655	(13)	1,818	185
Pension liability adjustments			(1,078)
Net current-period other comprehensive income	4,655	(13)	740	185
Ending balance	(4,754)	(36,740)	(4,754)	(36,740)
Accumulated Other Comprehensive Income
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	225	7,360	4,140	7,162
Ending balance	4,880	7,347	4,880	7,347
Foreign Currency Items
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			6,063	9,762
Foreign currency translation adjustment			1,818	185
Pension liability adjustments			0
Net current-period other comprehensive income			1,818	185
Ending balance	7,881	9,947	7,881	9,947
Pension Items
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			(1,923)	(2,600)
Foreign currency translation adjustment			0	0
Pension liability adjustments			(1,078)
Net current-period other comprehensive income			(1,078)	0
Ending balance	$ (3,001)	$ (2,600)	$ (3,001)	$ (2,600)