Long-Term Debt Long-Term Debt (Narrative) (Details) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2024 USD ($) $ / shares	Jan. 31, 2023 USD ($)	Jan. 31, 2024 USD ($) $ / shares	Jan. 31, 2023 USD ($)	Jan. 31, 2024 CAD ($)	Jul. 31, 2023 USD ($)	Dec. 18, 2020 USD ($)
Gross interest expense	$ 40,600,000	$ 38,400,000	$ 81,300,000	$ 73,700,000
Amortization of Debt Issuance Costs	1,700,000	1,600,000	3,200,000	3,200,000
Foreign currency gain on intercompany loans	3,040,000	2,338,000	(1,925,000)	(3,797,000)
Long-term Debt	2,794,031,000	2,867,330,000	2,794,031,000	2,867,330,000		$ 2,825,649,000
Debt Instrument, Face Amount							$ 575,000,000
Interest Rate Swap, Notional Amount	$ 400,000,000		$ 400,000,000
Derivative, Fixed Interest Rate	1.38%		1.38%		1.38%
Debt Instrument, Unused Borrowing Capacity, Fee			$ 0.0030
Term Loan [Member]
Debt Instrument, Interest Rate, Stated Percentage	6.93%		6.93%		6.93%
Long-term Debt	$ 984,375,000	1,046,875,000	$ 984,375,000	1,046,875,000		1,015,625,000
Long-term Line of Credit	1,000,000,000		1,000,000,000
Credit Facility Revolver [Member]
Line of Credit Facility, Maximum Borrowing Capacity	500,000,000		500,000,000
Long-term Debt	$ 0	0	$ 0	0		0
Debt Instrument, Basis Spread on Variable Rate	1.60%
Whistler Credit Agreement revolver [Member]
Line of Credit Facility, Maximum Borrowing Capacity					$ 300.0
Debt Instrument, Unused Borrowing Capacity, Fee			0.39%
Long-term Debt	$ 0	11,275,000	$ 0	11,275,000		0
Alpine Valley Secured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	11.90%		11.90%		11.90%
Long-term Debt	$ 4,600,000		$ 4,600,000
Boston Mills Brandywine Secured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	11.41%		11.41%		11.41%
Long-term Debt	$ 23,300,000		$ 23,300,000
Jack Frost Big Boulder Secured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	11.41%		11.41%		11.41%
Long-term Debt	$ 14,300,000		$ 14,300,000
Mount Snow Secured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	12.32%		12.32%		12.32%
Long-term Debt	$ 51,100,000		$ 51,100,000
Hunter Mountain Secured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	9.03%		9.03%		9.03%
Long-term Debt	$ 21,000,000		$ 21,000,000
Convertible Notes Payable
Long-term Debt	$ 575,000,000	$ 575,000,000	$ 575,000,000	$ 575,000,000		$ 575,000,000
Debt Instrument, Convertible, Conversion Price | $ / shares	$ 377.76		$ 377.76