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Summary of Significant Accounting Policies - Foreign Currency Translation (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Apr. 30, 2022
Jul. 31, 2021
Cumulative Translation Adjustment Summary [Roll Forward]    
Cumulative loss on foreign currency translation, beginning balance $ (100,860) $ (121,088)
(Loss) Gain on foreign currency translation (51,736) 20,228
Cumulative loss on foreign currency translation, ending balance $ (152,596) $ (100,860)