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Description of Business and Basis of Presentation (Details) - Segment	3 Months Ended		9 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2021	May 31, 2020
Concentration Risk [Line Items]
Number of reportable segments	2
Revenue | Customer concentration | ABL
Concentration Risk [Line Items]
Concentration (percent)	95.00%	95.00%	95.00%	95.00%
Revenue | Customer concentration | ISG
Concentration Risk [Line Items]
Concentration (percent)	5.00%	5.00%	5.00%	5.00%

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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