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Acquired Intangibles and Goodwill - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2020
Mar. 30, 2019
Finite-Lived Intangible Assets [Line Items]        
Acquired intangibles amortization $ 11.1 $ 18.1 $ 40.4 $ 56.1
Reclassification of goodwill 11.0   11.0  
Cost of Revenue [Member]        
Finite-Lived Intangible Assets [Line Items]        
Acquired intangibles amortization $ 8.1 $ 15.2 $ 31.6 $ 47.3