Quarterly report pursuant to Section 13 or 15(d)

Derivatives Narrative (Details)

v3.21.1
Derivatives Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2021
Feb. 29, 2020
Aug. 31, 2020
Derivative [Line Items]          
Foreign Currency Contract, Liability/Asset, Fair Value Disclosure $ (100)   $ (100)   $ (200)
Loss on Foreign Currency Fair Value Hedge Derivatives and Not Designated as Hedging Instruments at Fair Value 109 $ (376) 61 $ (551)  
London Interbank Offered Rate (LIBOR)          
Derivative [Line Items]          
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months 100   (100)    
Long-term Debt 145,000   145,000   180,000
Fair Value Hedging [Member]          
Derivative [Line Items]          
Derivative, Fair Value, Net 13,400   13,400   $ 16,700
Interest Rate Swap [Member] | London Interbank Offered Rate (LIBOR)          
Derivative [Line Items]          
Derivative, Amount of Hedged Item $ 100,000   $ 100,000    
Derivative, Fixed Interest Rate 0.259%   0.259%