Fair Value Measurements (Narrative) (Details) - USD ($)	Jan. 31, 2023	Jul. 31, 2022	Jan. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Contingent consideration liability, fair value	$ 24,700,000	$ 24,700,000
Maximum payout, fair value	30,700,000	30,700,000
Contingent consideration			$ 0
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Equity method investments	20,500,000	22,400,000
Fixed Interest Rate | Fair Value, Inputs, Level 2 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt instrument, fair value disclosure	386,400,000	396,900,000
Fixed Interest Rate | Fair Value, Inputs, Level 2 | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt instrument, fair value disclosure	425,000,000	425,000,000
Variable Interest Rate | Fair Value, Inputs, Level 2 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt instrument, fair value disclosure	201,900,000	221,700,000
Variable Interest Rate | Fair Value, Inputs, Level 2 | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt instrument, fair value disclosure	$ 201,900,000	$ 221,700,000