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Goodwill and Intangible Assets - Schedule of estimated amortization expense of intangible assets (Details)
$ in Thousands
Aug. 31, 2019
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Fiscal 2020 $ 17,691
Fiscal 2021 16,135
Fiscal 2022 9,037
Fiscal 2023 8,847
Fiscal 2024 8,441
Fiscal 2025 $ 6,977