Long-Term Debt (Schedule Of Debt Instruments) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2020	Jan. 31, 2019	Jul. 31, 2019
Amortization of Debt Issuance Costs	$ 300,000	$ 400,000	$ 700,000	$ 700,000
Debt Instrument, Unused Borrowing Capacity, Fee			0.003
Interest Rate Swap Notional Amount			$ 400,000,000.0
Derivative, Fixed Interest Rate	1.46%		1.46%
Total debt	$ 1,866,566,000	1,397,645,000	$ 1,866,566,000	1,397,645,000	$ 1,580,130,000
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	(14,048,000)	3,890,000	(14,048,000)	3,890,000	3,870,000
Long-term debt due within one year (Note 6)	63,556,000	48,493,000	63,556,000	48,493,000	48,516,000
Long-term debt, net (Note 6)	1,817,058,000	1,345,262,000	1,817,058,000	1,345,262,000	1,527,744,000
Hunter Mountain Secured Note [Member]
Total debt	$ 21,000,000.0		$ 21,000,000.0
Debt Instrument, Interest Rate, Stated Percentage	8.43%		8.43%
Annual Interest Rate Increase Cap			1.75%
Credit Facility Revolver [Member]
Total debt	$ 25,000,000	0	$ 25,000,000	0	208,000,000
Fiscal year maturity			2024
Whistler Credit Agreement revolver [Member]
Line of Credit Facility, Initiation Date			Nov. 12, 2013
Total debt	$ 26,447,000	60,904,000	$ 26,447,000	60,904,000	45,454,000
Fiscal year maturity			2024
Debt Instrument, Interest Rate, Stated Percentage	3.78%		3.78%
EPR Secured Notes [Member]
Total debt	$ 114,162,000	0	$ 114,162,000	0	0
Annual Interest Rate Increase Cap			1.50%
EB-5 Development Notes [Member]
Total debt	$ 51,500,000	0	$ 51,500,000	0	0
Fiscal year maturity			2021
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	1.00%		1.00%
EB-5 Development Note 1 [Member]
Total debt	$ 30,000,000.0		$ 30,000,000.0
EB-5 Development Note 2 [Member]
Total debt	22,000,000.0		22,000,000.0
Term Loan [Member]
Debt Instrument, Periodic Payment			15,600,000
Total debt	$ 1,234,375,000	938,125,000	$ 1,234,375,000	938,125,000	914,375,000
Fiscal year maturity			2024
Debt Instrument, Interest Rate, Stated Percentage	3.15%		3.15%
Employee Housing Bonds [Member]
Total debt	$ 52,575,000	52,575,000	$ 52,575,000	52,575,000	52,575,000
Canyons Obligation [Member]
Total debt	343,147,000	337,385,000	$ 343,147,000	337,385,000	340,261,000
Fiscal year maturity			2063
Other [Member]
Total debt	$ 19,360,000	$ 8,656,000	$ 19,360,000	$ 8,656,000	$ 19,465,000
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%		7.00%
Extension Year 2 [Member] | EB-5 Development Notes [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	10.00%		10.00%
Event of Default [Member] | EB-5 Development Notes [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.00%		5.00%