XML 126 R61.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Acquisitions - Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Business Acquisition [Line Items]      
Goodwill $ 1,224.8 $ 1,215.1 $ 1,208.2
Business Acquisition      
Business Acquisition [Line Items]      
Current assets 1.2 2.3  
Property and equipment 7.6 24.1  
Goodwill 8.7 7.0 35.2
Other intangible assets 7.5 7.7  
Total assets acquired 25.0 41.1  
Current liabilities 0.1 2.0  
Other long-term liabilities 0.0 9.0  
Total liabilities assumed 0.1 11.0  
Net assets acquired $ 24.9 $ 30.1 $ 115.9