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Revenue - Summary of Revenue from Contract with Customer (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2018
Dec. 31, 2018
Revenue From Contract With Customer [Abstract]    
Balance at beginning of period $ 95,010 $ 96,491
New billings 103,440 197,788
Recognition of deferred revenue (102,318) (198,147)
Balance at end of period $ 96,132 $ 96,132