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Commitments And Contingencies (Narrative) (Details)		12 Months Ended
Commitments And Contingencies (Narrative) (Details)	Aug. 18, 2020 USD ($)	Aug. 31, 2021 USD ($) claim
Loss Contingencies [Line Items]
Number of pending claims \| claim		0
Purchase Commitment [Member]
Loss Contingencies [Line Items]
Commitment outstanding		$ 0
Indemnification Agreement 1 [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
Jakarta Litigation [Member]
Loss Contingencies [Line Items]
Damages sought	$ 25,000,000.0
Minimum [Member] \| Purchase Commitment [Member]
Loss Contingencies [Line Items]
Purchase commitment period		2 months
Maximum [Member] \| Purchase Commitment [Member]
Loss Contingencies [Line Items]
Purchase commitment period		6 months