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COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($)	1 Months Ended		9 Months Ended	12 Months Ended
	Aug. 31, 2018	Jan. 31, 2017	May 31, 2019	Aug. 31, 2018
Commitments And Contingencies [Line Items]
Accrual for taxes other than income taxes, Current	$ 3,000,000		$ 3,400,000	$ 3,000,000
Contractual obligation	10,600,000		18,300,000	10,600,000
Land purchase option agreement	400,000		4,100,000	400,000
Land under purchase options, Not recorded			52,100,000
Provisional assessments			2,600,000
Income taxes receivable	24,509,000		$ 28,374,000	$ 24,509,000
Federal tax provision at statutory rates			21.00%	35.00%
Valuation allowance against foreign tax credits			$ 2,800,000
Miami-Dade County, Florida [Member]
Commitments And Contingencies [Line Items]
Letter of credit payable to the landlord		$ 500,000
Debt term			4 years
Annual decrease in LOC	125,000
Remaining outstanding balance			$ 375,000
Unknown Country [Member]
Commitments And Contingencies [Line Items]
Deferred tax assets, net	2,100,000		2,300,000	$ 2,100,000
Income taxes receivable	$ 7,100,000		$ 7,500,000	$ 7,100,000

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Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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