Long-Term Debt (Schedule Of Debt Instruments) (Details) - USD ($)	3 Months Ended
	Oct. 31, 2019	Jul. 31, 2019	Oct. 31, 2018
Debt Instrument, Unused Borrowing Capacity, Fee	$ 0.0025
Interest Rate Swap Notional Amount	100,000,000.0
Total debt	2,057,986,000	$ 1,580,130,000	$ 1,539,513,000
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	(10,878,000)	3,870,000	4,063,000
Long-term debt due within one year (Note 6)	63,807,000	48,516,000	48,482,000
Long-term debt, net (Note 6)	2,005,057,000	1,527,744,000	1,486,968,000
Hunter Mountain Secured Note [Member]
Total debt	$ 21,000,000.0
Debt Instrument, Interest Rate, Stated Percentage	8.43%
Annual Interest Rate Increase Cap	1.75%
Credit Facility Revolver [Member]
Total debt	$ 190,000,000	208,000,000	120,000,000
Fiscal year maturity	2024
Whistler Credit Agreement revolver [Member]
Line of Credit Facility, Initiation Date	Nov. 12, 2013
Total debt	$ 37,962,000	45,454,000	72,170,000
Fiscal year maturity	2023
Debt Instrument, Interest Rate, Stated Percentage	3.76%
EPR Secured Notes [Member]
Total debt	$ 114,162,000	0	0
Annual Interest Rate Increase Cap	1.50%
EB-5 Development Notes [Member]
Total debt	$ 52,000,000.0	0	0
Fiscal year maturity	2021
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	1.00%
EB-5 Development Note 1 [Member]
Total debt	$ 30,000,000.0
EB-5 Development Note 2 [Member]
Total debt	22,000,000.0
Term Loan [Member]
Debt Instrument, Periodic Payment	15,600,000
Total debt	$ 1,250,000,000	914,375,000	950,000,000
Fiscal year maturity	2024
Debt Instrument, Interest Rate, Stated Percentage	3.04%
Employee Housing Bonds [Member]
Total debt	$ 52,575,000	52,575,000	52,575,000
Canyons Obligation [Member]
Total debt	$ 341,704,000	340,261,000	335,947,000
Fiscal year maturity	2063
Other [Member]
Total debt	$ 19,583,000	$ 19,465,000	$ 8,821,000
Maximum [Member] | EPR Secured Notes [Member]
Fiscal year maturity, end	Dec. 31, 2036
Maximum [Member] | Employee Housing Bonds [Member]
Fiscal year maturity, end	Dec. 31, 2039
Maximum [Member] | Other [Member]
Fiscal year maturity, end	Dec. 31, 2032
Minimum [Member] | EPR Secured Notes [Member]
Fiscal year maturity, start	Dec. 31, 2034
Minimum [Member] | Employee Housing Bonds [Member]
Fiscal year maturity, start	Dec. 31, 2027
Minimum [Member] | Other [Member]
Fiscal year maturity, start	Dec. 31, 2020
Mount Snow Secured Note [Member]
EPR Additional Interest Rate	12.00%
Hunter Mountain Secured Note [Member]
EPR Additional Interest Rate	8.00%
Extension Year 1 [Member] | EB-5 Development Notes [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	7.00%
Extension Year 2 [Member] | EB-5 Development Notes [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	10.00%
Event of Default [Member] | EB-5 Development Notes [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.00%