CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	May 31, 2022	Aug. 31, 2021
CONSOLIDATED BALANCE SHEETS [Abstract]
Receivables, allowance for doubtful accounts	$ 50	$ 94
Prepaid expenses and other current assets, fair value of derivative instruments	1,550	0
Other non-current assets, fair value of derivative instruments	5,410	2,464
Other long-term liabilities, fair value of derivative instruments	1,048	3,010
Other long-term liabilities, post-employment plans	$ 7,445	$ 7,380
Common stock, par value per share	$ 0.0001	$ 0.0001
Common stock, shares authorized	45,000,000	45,000,000
Common stock, shares issued	31,688,311	31,467,971
Common stock, shares outstanding	30,930,527	30,755,308
Treasury stock, shares	757,784	712,663