Accumulated Other Comprehensive Loss, Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Other Comprehensive Income (Loss), Tax [Abstract]
Cash flow hedges	$ (148)	$ (123)	$ 283
Pension and other post-retirement benefits	167	95	229
Other income tax adjustments and currency translation	(505)	378	337
Income tax benefit (expense) related to items of other comprehensive (loss) income	$ 524	$ (406)	$ 175