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Goodwill and Other Intangible Assets - Additional Information (Details) $ in Thousands | 12 Months Ended
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Aug. 31, 2019 USD ($)
Goodwill [Line Items] |
Future amortization expense, 2020 | $ 7,600
Future amortization expense, 2021 | 6,700
Future amortization expense, 2022 | 5,900
Future amortization expense, 2023 | 4,400
Future amortization expense, 2024 | 2,700
Future amortization expense, thereafter | 4,700
Goodwill, Impairment Charge | 13,678
Trade Names |
Goodwill [Line Items] |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | 2,600
Customer Relationships |
Goodwill [Line Items] |
Impairment of Intangible Assets, Finite-lived | 6,200
Cortland U.S. |
Goodwill [Line Items] |
Goodwill, Impairment Charge | 13,700
Remaining EC&S Segment [Domain] |
Goodwill [Line Items] |
Goodwill, Impairment Charge | $ 210,000

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