| **Supplementary Balance Sheet Information (Components Of Accounts Payable And Accrued Liabilities) (Details) - USD ($) $ in Thousands** | Jul. 31, 2023 | Jul. 31, 2022 |
|-----------------------------------------------------------------------------------------------------------------------------------------|---------------|---------------|
| Trade payables                                                                                                                          | $ 148,521     | $ 151,263     |
| Deferred Revenue, Current                                                                                                               | 572,602       | 511,306       |
| Accrued salaries, wages and deferred compensation                                                                                       | 38,908        | 64,570        |
| Accrued benefits                                                                                                                        | 60,466        | 45,202        |
| Deposits                                                                                                                                | 37,798        | 37,731        |
| Current operating lease liability                                                                                                       | 36,904        | 34,218        |
| Other accruals                                                                                                                          | 82,822        | 98,540        |
| Total accounts payable and accrued liabilities                                                                                          | $ 978,021     | $ 942,830     |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying amount as of the balance sheet date of liabilities incurred (of which invoices have been received and for which invoice have not yet been received or will not be rendered). Includes deferred revenue, accrued interest expense, deposits, accrued salaries, wages and benefits and other accrued liabilities.
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| - Definition
Current operating lease liability
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| - Definition
Carrying value as of the balance sheet date of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
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| - Definition
Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.
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