Annual report pursuant to Section 13 and 15(d)

Derivatives - Additional Information (Details)

v3.20.2
Derivatives - Additional Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 31, 2020
Aug. 31, 2019
Aug. 31, 2018
Derivative [Line Items]      
Gain (Loss) on Foreign Currency Fair Value Hedge Derivatives and Not Designated as Hedging Instruments at Fair Value $ (594) $ (292) $ 249
Foreign Currency Contract, Liability/Asset, Fair Value Disclosure 200 100  
Long-term Debt 255,000 462,559  
LIBOR      
Derivative [Line Items]      
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months (100)    
Long-term Debt 180,000    
Fair Value Hedging [Member]      
Derivative [Line Items]      
Derivative, Notional Amount 16,700 $ 13,300  
Net Investment Hedging [Member]      
Derivative [Line Items]      
AOCI, Derivative Qualifying as Hedge, Excluded Component, after Tax (500)    
Interest Rate Swap [Member] | LIBOR      
Derivative [Line Items]      
Derivative, Amount of Hedged Item $ 100,000    
Derivative, Fixed Interest Rate 0.259%