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Other Assets - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Schedule of Equity Method Investments [Line Items]      
Income (loss) from equity method investments $ 13,668 $ 5,965 $ 5,952
Minimum      
Schedule of Equity Method Investments [Line Items]      
Ownership percentage 4.00%    
Maximum      
Schedule of Equity Method Investments [Line Items]      
Ownership percentage 20.00%