Leases - Maturities Under Topic 840 (Details) $ in Thousands	Jul. 31, 2019 USD ($)
Leases [Abstract]
For the remainder of the fiscal year ending July 31, 2020	$ 8,785
For the remainder of the fiscal year ending July 31, 2020	974
For the fiscal year ending July 31, 2021	6,809
For the fiscal year ending July 31, 2021	993
For the fiscal year ending July 31, 2022	5,437
For the fiscal year ending July 31, 2022	1,015
For the fiscal year ending July 31, 2023	3,980
For the fiscal year ending July 31, 2023	1,037
For the fiscal year ending July 31, 2024	3,424
For the fiscal year ending July 31, 2024	1,061
For the fiscal year ending July 31, 2025 and thereafter	20,745
For the fiscal year ending July 31, 2025 and thereafter	3,037
Total future lease payments	49,180
Total future lease payments	8,117
Less: amount representing interest	2,427
Total lease liability	5,690
Less: current portion	444
Long-term finance lease obligations	$ 5,246