Accumulated Other Comprehensive Loss, Tax (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Other Comprehensive Income (Loss), Tax [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	$ (71)	$ (6)	$ (72)	$ 24
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	0	0	246	93
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	372	(173)	(925)	(127)
Income tax benefit (expense) related to items of other comprehensive income (loss)	$ 301	$ (179)	$ (751)	$ (10)