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Commitments And Contingencies (Narrative) (Details) - USD ($)
3 Months Ended
Aug. 18, 2020
Nov. 30, 2021
Purchase Commitment [Member]    
Loss Contingencies [Line Items]    
Commitment outstanding   $ 0
Indemnification Agreement 2 [Member]    
Loss Contingencies [Line Items]    
Liabilities related to indemnification agreement   0
Senior Officers And Directors [Member] | Indemnification Agreement 1 [Member]    
Loss Contingencies [Line Items]    
Liabilities related to indemnification agreement   $ 0
Minimum [Member] | Purchase Commitment [Member]    
Loss Contingencies [Line Items]    
Purchase commitment period   2 months
Minimum [Member] | Jakarta Litigation [Member]    
Loss Contingencies [Line Items]    
Damages sought $ 25,000,000.0  
Maximum [Member] | Purchase Commitment [Member]    
Loss Contingencies [Line Items]    
Purchase commitment period   6 months