Supplementary Balance Sheet Information Composition of Property, Plant and Equipment under Capital Lease (Details) - Canyons [Member] - USD ($) $ in Thousands	Jul. 31, 2023	Jul. 31, 2022
Property, Plant and Equipment [Line Items]
Capital Leased Assets, Land	$ 31,818	$ 31,818
Capital Leased Assets, Land Improvements	49,228	49,228
Capital Leased Assets, Buildings and Building Improvements	70,917	42,160
Capital Leased Assets, Machinery and Equipment	71,527	60,384
Finance Lease, Right-of-Use Asset, before Accumulated Amortization	223,490	183,590
Capital Leased Assets, Accumulated Depreciation	(96,257)	(84,556)
Capital Leased Assets, Net	$ 127,233	$ 99,034