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Other Investments - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Jun. 30, 2019
Schedule Of Equity Method Investments [Line Items]      
Equity interest, percentage 93.80%    
Aggregate cost of equity method investments $ 51,700    
Pro-rata share of earnings from equity method investment $ 600 $ 1,594  
Voting interest 25.00%    
Equity Investment $ 76,808   $ 76,208
Equity Investment      
Schedule Of Equity Method Investments [Line Items]      
Equity Investment $ 57,700   $ 57,600
Privately-held Company      
Schedule Of Equity Method Investments [Line Items]      
Pro-rata share of earnings from equity method investment   $ 1,100