PENSION AND OTHER POSTRETIREMENT BENEFITS Components of net periodic benefit cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Pension Benefits
Defined Benefit Plans and Postretirement Health Benefits
Service cost	$ 0	$ 0
Interest cost	1,009	1,068
Expected return on plan assets	(1,673)	(2,586)
Amortization of: Prior service income	0	0
Amortization of: Other actuarial loss	42	145
Settlement cost	5,544	0
Net periodic benefit (income) cost	4,922	(1,373)
Postretirement Health Benefits
Defined Benefit Plans and Postretirement Health Benefits
Service cost	84	123
Interest cost	73	58
Expected return on plan assets	0	0
Amortization of: Prior service income	(6)	(6)
Amortization of: Other actuarial loss	(83)	0
Settlement cost	0	0
Net periodic benefit (income) cost	$ 68	$ 175