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Acquisitions (Fair Value of Assets Acquired and Liabilities Assumed) (Details) - USD ($)
Jul. 31, 2023
Jul. 31, 2022
Jul. 31, 2021
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]      
Goodwill $ 347,692,000 $ 347,692,000  
UHP      
Business Acquisition [Line Items]      
Business Combination, Fair Value Of Contingent Earn-Out Consideration $ 0 $ 0 $ 8,500,000