Summary of Significant Accounting Policies Recently Issued Accounting Standards (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Jul. 31, 2021	Oct. 31, 2020
Long-term Debt	$ 2,911,069	$ 2,948,514	$ 2,444,111
Operating Lease, Right-of-Use Asset	204,476	204,716	218,902
Operating Lease, Liability, Noncurrent	192,328	190,561	213,073
Operating Lease, Liability, Current	36,036	34,668	36,185
Interest Rate Cash Flow Hedge Liability at Fair Value	5,348	12,942	17,855
EPR Secured Notes [Member]
Long-term Debt	114,162	114,162	114,162
Notes and Loans Payable	135,310
Debt Instrument, Fair Value Disclosure	208,284
EB-5 Development Notes [Member]
Long-term Debt	51,500	51,500	51,500
6.25% Notes [Member]
Long-term Debt	600,000	600,000	600,000
Debt Instrument, Fair Value Disclosure	633,516
0.0% Convertible Notes
Long-term Debt	482,754
Debt Instrument, Fair Value Disclosure	630,453
Convertible Notes Payable
Long-term Debt	$ 575,000	$ 575,000	$ 0