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Long-Term Debt Long-Term Debt (Narrative) (Details) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Apr. 30, 2025 USD ($) $ / shares	Apr. 30, 2024 USD ($)	Apr. 30, 2025 USD ($) $ / shares	Apr. 30, 2024 USD ($)	Apr. 30, 2025 CAD ($)	Jul. 31, 2024 USD ($)	Dec. 18, 2020 USD ($)
Foreign currency gain on intercompany loans	$ 1,702,000	$ (2,305,000)	$ 53,000	$ (4,230,000)
Long-term Debt	2,705,043,000	2,772,635,000	2,705,043,000	2,772,635,000		$ 2,787,638,000
Debt Instrument, Face Amount							$ 575,000,000
Interest Rate Swap, Notional Amount	$ 400,000,000		$ 400,000,000
Derivative, Fixed Interest Rate	138.00%		138.00%		138.00%
Debt Instrument, Unused Borrowing Capacity, Fee			$ 0.0030
Repurchases of 0.0% Convertible Notes			48,000,000	0
Gain (Loss) on Extinguishment of Debt			2,000,000
Debt, Current	$ 525,000,000		525,000,000
Repayments of Debt			50,000,000
Repayments of Notes Payable			25,700,000
Notes Payable	$ 6,400,000		$ 6,400,000
Term Loan [Member]
Debt Instrument, Interest Rate, Stated Percentage	5.92%		5.92%		5.92%
Long-term Debt		968,750,000		968,750,000		959,766,000
Long-term Line of Credit	$ 922,852,000		$ 922,852,000
Credit Facility Revolver [Member]
Line of Credit Facility, Maximum Borrowing Capacity	600,000,000		600,000,000
Long-term Debt	$ 0	0	0	0		0
Debt Instrument, Basis Spread on Variable Rate	1.60%
Line of Credit Facility, Increase (Decrease), Net			$ 100,000,000
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	0	$ 0	0		0
Alpine Valley Secured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	12.07%		12.07%		12.07%
Long-term Debt	$ 4,600,000		$ 4,600,000
Boston Mills Brandywine Secured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	11.58%		11.58%		11.58%
Long-term Debt	$ 23,300,000		$ 23,300,000
Jack Frost Big Boulder Secured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	11.58%		11.58%		11.58%
Long-term Debt	$ 14,300,000		$ 14,300,000
Mount Snow Secured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	12.69%		12.69%		12.69%
Long-term Debt	$ 51,100,000		$ 51,100,000
Hunter Mountain Secured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage	9.35%		9.35%		9.35%
Long-term Debt	$ 21,000,000		$ 21,000,000
Delayed Draw Term Loans
Line of Credit Facility, Maximum Borrowing Capacity	450,000,000		$ 450,000,000
Debt Instrument, Unused Borrowing Capacity, Fee			0.30%
Convertible Notes Payable
Long-term Debt	$ 525,000,000	575,000,000	$ 525,000,000	575,000,000		575,000,000
Debt Instrument, Convertible, Conversion Price | $ / shares	$ 355.52		$ 355.52
6.25% Notes [Member]
Long-term Debt	$ 0	600,000,000	$ 0	600,000,000		0
6.50% Notes
Long-term Debt	$ 600,000,000	$ 0	$ 600,000,000	$ 0		$ 600,000,000

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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