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v3.23.1

Guarantees (Narrative) (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Apr. 30, 2023 | Apr. 30, 2022 | Apr. 30, 2023 | Apr. 30, 2022 | Jul. 31, 2022
Guarantor Obligations |  |  |  |  |
Investment earnings | $ 4,000,000 | $ 3,200,000 | $ 5,800,000 | $ 6,600,000 |
Unsecured revolving credit facility |  |  |  |  |
Guarantor Obligations |  |  |  |  |
Available credit facilities | 63,000,000 |  | 63,000,000 |  |
Multi-Currency Revolving Credit Facility |  |  |  |  |
Guarantor Obligations |  |  |  |  |
Available credit facilities | 17,000,000 |  | 17,000,000 |  |
Advanced Filtration Systems, Inc. |  |  |  |  |
Guarantor Obligations |  |  |  |  |
AFSI outstanding debt | $ 64,600,000 |  | $ 64,600,000 |  | $ 68,800,000

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