Long-Term Debt (Schedule Of Debt Instruments) (Details) - USD ($) $ in Thousands	9 Months Ended
Apr. 30, 2019	Jul. 31, 2018	Apr. 30, 2018
Total debt	$ 1,363,411	$ 1,276,082	$ 1,119,986
Unamortized Debt Issuance Expense	4,037	3,350	3,537
Long-term debt due within one year (Note 5)	48,504	38,455	38,444
Long-term debt, net (Note 5)	1,310,870	1,234,277	1,078,005
Credit Facility Revolver [Member]
Total debt	$ 0	130,000	0
Fiscal year maturity	2024
Whistler Credit Agreement revolver [Member]
Total debt	$ 26,127	65,353	31,153
Fiscal year maturity	2023
Term Loan [Member]
Total debt	$ 926,250	684,375	693,750
Fiscal year maturity	2024
Employee Housing Bonds [Member]
Total debt	$ 52,575	52,575	52,575
Canyons Obligation [Member]
Total debt	$ 338,823	334,509	333,078
Fiscal year maturity	2063
Other [Member]
Total debt	$ 19,636	$ 9,270	$ 9,430
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] \| Employee Housing Bonds [Member]
Fiscal year maturity, start	Dec. 31, 2027
Minimum [Member] \| Other [Member]
Fiscal year maturity, start	Dec. 31, 2020

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Latest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format.

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Earliest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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