XML 107 R93.htm IDEA: XBRL DOCUMENT v3.19.2
Commitments and Contingencies - Summary of Rental Expense (Detail) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Commitments And Contingencies Disclosure [Abstract]      
Rental expense $ 19.7 $ 15.5 $ 15.2