PENSION AND OTHER POSTRETIREMENT BENEFITS Estimated future benefit payments (Details) $ in Thousands	Jul. 31, 2018 USD ($)
Pension Benefits
Defined Benefit Plans and Postretirement Health Benefits
2019	$ 1,687
2020	1,699
2021	1,786
2022	1,904
2023	1,944
2024-28	13,139
Postretirement Health Benefits
Defined Benefit Plans and Postretirement Health Benefits
2019	57
2020	95
2021	122
2022	124
2023	165
2024-28	$ 1,360

Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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