Income Taxes (Components Of Deferred Tax Liabilities And Assets) (Details) - USD ($) $ in Thousands	Jul. 31, 2021	Jul. 31, 2020
Income Tax Disclosure [Abstract]
Fixed assets	$ 204,714	$ 216,016
Intangible assets	100,751	86,509
Deferred Tax Liabilities, Leasing Arrangements	47,915	53,727
Deferred Tax Liabilities, Convertible Debt	23,783	0
Deferred Tax Liabilities, Other	15,116	13,709
Deferred Tax Liabilities, Gross	392,279	369,961
Deferred Tax Liabilities, Net	249,758	227,440
Deferred Tax Asset, Talisker Canyons Obligation	16,080	14,997
Stock-based compensation	10,335	10,313
Deferred Tax Assets, Investments	7,585	12,400
Deferred compensation and other accrued benefits	13,887	9,918
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Contingencies	7,430	4,468
Net operating loss carryforwards other tax credits	12,182	13,205
Deferred Tax Assets, Operating Lease Liabilities	53,755	60,838
Other, net	27,206	21,712
Total	148,460	147,851
Valuation allowance for deferred income taxes	(5,939)	(5,330)
Deferred income tax assets, net of valuation allowance	$ 142,521	$ 142,521