LEASES - Assets and Liabilities (Details) $ in Thousands	Jul. 31, 2020 USD ($)
Leases [Abstract]
Operating lease right-of-use assets	$ 33,609
Other current liabilities	5,343
Other long-term liabilities	28,456
Total operating lease liabilities	33,799
Finance lease right-of-use assets	3,672
Other current liabilities	505
Other long-term liabilities	4,743
Total finance lease liabilities	$ 5,248
Weighted average remaining lease term - operating leases	13 years 7 months 6 days
Weighted average remaining lease term - financing leases	6 years 9 months 18 days
Weighted average discount rate - operating leases	3.40%
Weighted average discount rate - finance leases	9.70%
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent