Fair Value Measurements - Schedule of Fair Value, Assets Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Oct. 31, 2021	Jul. 31, 2021
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 204	$ 204
Deferred compensation plan mutual fund assets	55,269	51,085
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency forward contract liability	282	88
Interest rate swap liabilities	$ 9,820	$ 13,369