PENSION AND OTHER POSTRETIREMENT BENEFITS Amounts recognized in other comprehensive income (Details) - USD ($) $ in Thousands	12 Months Ended
Jul. 31, 2020	Jul. 31, 2019
Defined Benefit Plans and Postretirement Health Benefits
Total recognized in other comprehensive loss (income)	$ (2,897)	$ 4,507
Pension Benefits
Defined Benefit Plans and Postretirement Health Benefits
Net actuarial loss (gain)	4,243	5,016
Amortization of: Prior service (cost) income	0	(1)
Amortization of actuarial (loss) gain	(763)	(586)
Curtailment/Settlement	(6,570)	0
Total recognized in other comprehensive loss (income)	(3,090)	4,429
Postretirement Health Benefits
Defined Benefit Plans and Postretirement Health Benefits
Net actuarial loss (gain)	188	73
Amortization of: Prior service (cost) income	5	5
Amortization of actuarial (loss) gain	0	0
Curtailment/Settlement	0	0
Total recognized in other comprehensive loss (income)	$ 193	$ 78

Combined Settlement and Curtailment Gain (Loss), after Tax

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Amount, after tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount, after tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

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