Stock-Based Compensation - Summary of RSU and PRSU Activity (Detail) - $ / shares	3 Months Ended
	Oct. 31, 2025	Oct. 31, 2024
Restricted Stock Units (RSUs)
Number of Shares (in shares) [Abstract]
Outstanding and Unvested, Beginning Balance	162,667
Equity Instruments Other than Options, Grants in Period	97,750
Equity Instruments Other than Options, Vested in Period	(67,719)
Equity Instruments Other than Options, Forfeited in Period	(1,587)
Outstanding and Unvested, Ending Balance	191,111
Weighted Average Grant Date Fair Value [Abstract]
Outstanding and Unvested, Beginning Balance, Weighted Average Grant Date Fair Value	$ 65.19
Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	78.19	$ 74.63
Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	61.32
Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	68.21
Outstanding and Unvested, Ending Balance, Weighted Average Grant Date Fair Value	$ 73.19
Performance Shares [Member]
Number of Shares (in shares) [Abstract]
Outstanding and Unvested, Beginning Balance	152,266
Equity Instruments Other than Options, Grants in Period	73,123
Equity Instruments Other than Options, Vested in Period	(25,074)
Equity Instruments Other than Options, Forfeited in Period	(11,105)
Outstanding and Unvested, Ending Balance	189,210
Weighted Average Grant Date Fair Value [Abstract]
Outstanding and Unvested, Beginning Balance, Weighted Average Grant Date Fair Value	$ 59.92
Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	70.14	$ 71.24
Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	60.79
Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	48.62
Outstanding and Unvested, Ending Balance, Weighted Average Grant Date Fair Value	$ 64.19