DEBT (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands	Aug. 31, 2019		Aug. 31, 2018		Aug. 31, 2017
Debt Instrument [Line Items]
Total long-term loans	$ 89,586	[1]	$ 102,575	[2]	$ 106,297	[3]
Less: current portion	25,875		14,855		18,358
Long-term debt, net of current portion	63,711		87,720		$ 87,939
Long term debt with balloon payment [Member]
Debt Instrument [Line Items]
Total long-term loans	7,481		9,509
Interest Rate Swap With Non-Cash Assets And/Or Cash Or Cash Equivalents [Member]
Debt Instrument [Line Items]
Total long-term loans	53,544		60,849
Non-Cash Assets And/Or Cash Or Cash Equivalents [Member]
Debt Instrument [Line Items]
Total long-term loans	4,337		4,392
Cross Currency Interest Rate Swap With Non-Cash Assets And/Or Cash Or Cash Equivalents [Member]
Debt Instrument [Line Items]
Total long-term loans	$ 24,224		$ 27,825

[1] The carrying amount on non-cash assets assigned as collateral for these loans was $111.3 million. No cash assets were assigned as collateral for these loans.

[2] The carrying amount on non-cash assets assigned as collateral for these loans was $125.9 million. No cash assets were assigned as collateral for these loans.

[3] The carrying amount on non-cash assets assigned as collateral for these loans was $128.4 million. No cash assets were assigned as collateral for these loans.