XML 72 R48.htm IDEA: XBRL DOCUMENT v3.5.0.2
Net Income Per Share (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Debt Instrument [Line Items]        
Interest expense $ 5.1 $ 4.9 $ 10.1 $ 9.8