Fair Value Measurements (Schedule of Financial Assets and Liabilities Measured at Fair Value) (Details) - USD ($) $ in Thousands	May 31, 2023	Aug. 31, 2022	May 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 131,577	$ 105,048	$ 81,757
Marketable securities:
Derivative assets	2,817	5,505	1,080
Corporate Bonds [Member]
Marketable securities:
Marketable securities	11,360	9,668	10,754
U.S. Treasury Securities [Member]
Marketable securities:
Marketable securities	1,446	1,792	3,176
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	131,577	105,048	81,757
Marketable securities:
Derivative assets	0	0	0
Level 1 [Member] | Corporate Bonds [Member]
Marketable securities:
Marketable securities	0	0	0
Level 1 [Member] | U.S. Treasury Securities [Member]
Marketable securities:
Marketable securities	0	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0	0
Marketable securities:
Derivative assets	2,817	5,505	1,080
Level 2 [Member] | Corporate Bonds [Member]
Marketable securities:
Marketable securities	11,360	9,668	10,754
Level 2 [Member] | U.S. Treasury Securities [Member]
Marketable securities:
Marketable securities	1,446	1,792	3,176
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0	0
Marketable securities:
Derivative assets	0	0	0
Level 3 [Member] | Corporate Bonds [Member]
Marketable securities:
Marketable securities	0	0	0
Level 3 [Member] | U.S. Treasury Securities [Member]
Marketable securities:
Marketable securities	$ 0	$ 0	$ 0