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Long-Term Debt - Schedule of Maturities of Long-term Debt (Details)
$ in Thousands
Jul. 31, 2019
USD ($)
Debt Disclosure [Abstract]  
For the fiscal year ending July 31, 2020 $ 18,826
For the fiscal year ending July 31, 2021 19,549
For the fiscal year ending July 31, 2022 18,264
For the fiscal year ending July 31, 2023 18,382
For the fiscal year ending July 31, 2024 18,463
For the fiscal year ending July 31, 2025 and thereafter 1,860,859
Total long-term debt, gross $ 1,954,343