Restructuring (Narrative) (Details) $ in Thousands	3 Months Ended			9 Months Ended
	May 31, 2024 USD ($)	Feb. 29, 2024 USD ($) item	Nov. 30, 2023 USD ($)	May 31, 2024 USD ($)
Restructuring Cost and Reserve [Line Items]
Severance charges	$ 701			$ 3,008
Restructuring liability	600			$ 600
Number of workforce reduced | item		50
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Severance charges		$ 1,700
Additional Severance And Legal Expense [Member]
Restructuring Cost and Reserve [Line Items]
Severance charges	700
Education Practice [Member]
Restructuring Cost and Reserve [Line Items]
Severance charges	400
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Severance charges	100
Direct Offices [Member]
Restructuring Cost and Reserve [Line Items]
Severance charges	$ 1,900		$ 600