VIE’s Summarized Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Jan. 31, 2022	Jul. 31, 2021
Cash and equivalents	$ 104,268	$ 107,147
Trade accounts receivable, net	53,247	46,644
Prepaid expenses	17,408	13,694
Other current assets	22,582	16,779
Property, plant, and equipment, net	31,639	30,829
Other intangibles, net	6,940	7,578
Total assets	505,894	512,655
Trade accounts payable	23,800	24,502
Accrued expenses	122,372	129,085
Other current liabilities	30,744	27,930
Accumulated other comprehensive loss	(11,088)	(10,183)
Noncontrolling interests	2,385	1,750
Total liabilities and noncontrolling interests	505,894	512,655
Variable Interest Entity, Primary Beneficiary [Member]
Cash and equivalents	1,535	1,364
Restricted cash	3,914	3,848
Trade accounts receivable, net	42	91
Prepaid expenses	231	344
Other current assets	693	858
Due from the Company	88
Property, plant, and equipment, net	566	637
Other intangibles, net	966	1,042
Total assets	8,035	8,184
Trade accounts payable		312
Accrued expenses	27	26
Other current liabilities	4,648	4,491
Due to the Company		8
Accumulated other comprehensive loss	6	(7)
Noncontrolling interests	3,354	3,354
Total liabilities and noncontrolling interests	$ 8,035	$ 8,184