Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Summary of Significant Accounting Policies - PPE (Details) $ in Thousands	3 Months Ended			12 Months Ended
	Aug. 31, 2020 USD ($)	Aug. 31, 2019 segment	Feb. 28, 2019 USD ($)	Aug. 31, 2020 segment	Aug. 31, 2019 USD ($)
Goodwill
Number of reporting units				3
Number of operating segments		3		3
Loss on impairment of goodwill \| $	$ 0		$ 2,410		$ 2,410
Buildings and improvements \| Minimum
Property, plant and equipment
Estimated useful life				15 years
Buildings and improvements \| Maximum
Property, plant and equipment
Estimated useful life				40 years
Machinery and equipment \| Minimum
Property, plant and equipment
Estimated useful life				3 years
Machinery and equipment \| Maximum
Property, plant and equipment
Estimated useful life				10 years