XML 87 R75.htm IDEA: XBRL DOCUMENT v3.6.0.2
Segment and Related Information - Schedule of Total Operating Income for Reportable Segments (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Segment Reporting [Abstract]        
Total operating income for reportable segments $ 13.2 $ 45.2 $ 19.4 $ 88.5
Interest income 0.3 0.1 0.6 0.2
Interest expense (2.6) (0.1) (3.3) (0.1)
Other 1.2 (0.2) (0.6)  
Income before income tax 12.1 45.0 16.1 88.6
Income tax provision 6.2 7.9 11.4 21.1
Net income $ 5.9 $ 37.1 $ 4.7 $ 67.5