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Other Assets - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Schedule of Equity Method Investments [Line Items]        
Income (loss) from equity method investments $ 2,800 $ (300) $ 10,652 $ (503)
Minimum        
Schedule of Equity Method Investments [Line Items]        
Ownership percentage 4.00%   4.00%  
Maximum        
Schedule of Equity Method Investments [Line Items]        
Ownership percentage 20.00%   20.00%