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Other Assets - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]        
Income (loss) from equity method investments $ 5,500 $ 300 $ 7,863 $ (196)
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%