Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ (55,953)	$ (66,477)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(51,664)	11,111
Amounts reclassified from accumulated other comprehensive loss	(1,460)	587
Ending balance	(109,077)	(55,953)
Unrealized gain (loss) on cash flow hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	729	(200)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	907	1,228
Amounts reclassified from accumulated other comprehensive loss	(682)	299
Ending balance	954	729
Foreign currency translation adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(58,570)	(68,458)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(52,897)	9,888
Amounts reclassified from accumulated other comprehensive loss	0	0
Ending balance	(111,467)	(58,570)
Gain on post-retirement plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	1,888	2,181
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	326	(5)
Amounts reclassified from accumulated other comprehensive loss	(778)	288
Ending balance	$ 1,436	$ 1,888