XML 43 R38.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Revenue - Contract Balances Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 31, 2019
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]    
Contract with customer liability, revenue recognized in the period $ 23.2 $ 48.7