XML 80 R50.htm IDEA: XBRL DOCUMENT v3.7.0.1
Fair Value Measurements (Details 2) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Business Acquisition, Contingent Consideration [Line Items]    
Additions $ 0.0 $ 0.0
Changes in fair value 10.0 2.3
Payments (6.7) 0.0
Fair Value, Measurements, Recurring    
Business Acquisition, Contingent Consideration [Line Items]    
Fair value, beginning of period 467.6 506.0
Fair value, end of period $ 470.9 $ 508.3