LEASES - Assets and Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2021	Jul. 31, 2020
Leases [Abstract]
Operating lease right-of-use assets	$ 42,601	$ 33,609
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, Plant, and Equipment and Finance Lease and Operating Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization	Property, Plant, and Equipment and Finance Lease and Operating Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization
Other current liabilities	$ 8,944	$ 5,343
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other	Other
Other long-term liabilities	$ 33,923	$ 28,456
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities
Total operating lease liabilities	$ 42,867	$ 33,799
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, Plant, and Equipment and Finance Lease and Operating Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization	Property, Plant, and Equipment and Finance Lease and Operating Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization
Finance lease right-of-use assets	$ 7,010	$ 3,672
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other	Other
Other current liabilities	$ 1,081	$ 505
Other long-term liabilities	$ 4,694	$ 4,743
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities
Total finance lease liabilities	$ 5,775	$ 5,248
Weighted average remaining lease term - operating leases	11 years 1 month 6 days	13 years 7 months 6 days
Weighted average remaining lease term - financing leases	5 years 1 month 6 days	6 years 9 months 18 days
Weighted average discount rate - operating leases	3.20%	3.40%
Weighted average discount rate - finance leases	8.90%	9.70%