VIE’s Summarized Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Cash and cash equivalents	$ 98,352	$ 107,147
Trade accounts receivable, net	64,315	46,644
Prepaid expenses	17,526	13,694
Other current assets	30,773	16,779
Property, plant, and equipment, net	36,866	30,829
Other intangibles, net	9,609	7,578
TOTAL ASSETS	497,094	512,655
Trade accounts payable	29,080	24,502
Accrued expenses	117,109	129,085
Other current liabilities	36,588	27,930
Accumulated other comprehensive loss	(11,305)	(10,183)	$ (7,410)	$ (4,858)
Noncontrolling interests	3,022	1,750
TOTAL LIABILITIES AND NONCONTROLLING INTERESTS	497,094	512,655
Variable Interest Entity, Primary Beneficiary [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Cash and cash equivalents	1,808	1,364
Restricted cash	4,490	3,848
Trade accounts receivable, net	31	91
Prepaid expenses	14	344
Other current assets	1,387	858
Due from the Company	86
Property, plant, and equipment, net	467	637
Other intangibles, net	889	1,042
TOTAL ASSETS	9,172	8,184
Trade accounts payable		312
Accrued expenses	20	26
Other current liabilities	5,559	4,491
Due to the Company		8
Accumulated other comprehensive loss	(9)	(7)
Noncontrolling interests	3,602	3,354
TOTAL LIABILITIES AND NONCONTROLLING INTERESTS	$ 9,172	$ 8,184