VIE’s Summarized Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Jul. 31, 2021	May 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Cash and Cash Equivalents, at Carrying Value	$ 107,147		$ 84,860
Receivables, Net, Current	46,644		44,166
Prepaid Expense, Current	13,694		7,790
Other Assets, Current	16,779		19,302
Property, Plant and Equipment, Net	30,829		30,061
Other Intangible Assets, Net	7,578		3,959
Assets	512,655		404,750
Accounts Payable, Current	24,502		25,150
Accrued Liabilities, Current	129,085		125,544
Other Liabilities, Current	27,930		18,070
Accumulated Other Comprehensive Income (Loss), Net of Tax	(10,183)		(7,410)	$ (4,858)
Stockholders' Equity Attributable to Noncontrolling Interest	1,750		(3,633)
Liabilities and Equity	512,655		$ 404,750
Variable Interest Entity [Member]
Cash and Cash Equivalents, at Carrying Value	1,364	$ 1,249
Restricted Cash, Current	3,848	2,087
Receivables, Net, Current	91	80
Prepaid Expense, Current	344	126
Other Assets, Current	858	1,248
Property, Plant and Equipment, Net	637	637
Other Intangible Assets, Net	1,042	1,067
Assets	8,184	6,494
Accounts Payable, Current	312	22
Accrued Liabilities, Current	26	43
Other Liabilities, Current	4,491	3,136
Due to Related Parties, Noncurrent	8
Accumulated Other Comprehensive Income (Loss), Net of Tax	(7)	(7)
Stockholders' Equity Attributable to Noncontrolling Interest	3,354	3,300
Liabilities and Equity	$ 8,184	$ 6,494