XML 88 R77.htm IDEA: XBRL DOCUMENT v3.8.0.1
Fair Value Measurement (Narrative) (Details) - USD ($)
$ in Millions
Sep. 30, 2017
Dec. 31, 2016
Sep. 30, 2016
Dec. 31, 2015
Fair Value Disclosures [Abstract]        
Liability $ 1,186.9 $ 1,058.0 $ 996.7 $ 475.9
Contingent consideration payable, current 633.4      
Contingent consideration payable, noncurrent 553.5      
Fair value | Recurring Basis        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Joint venture net written option $ 25.0