Annual report pursuant to Section 13 and 15(d)

Intangible Assets - Schedule of Intangible Assets (Details)

v3.8.0.1
Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 45.3 $ 10.9
Accumulated Amortization 6.4 2.3
Indefinite-lived Intangible Assets [Line Items]    
Total 66.8 44.9
Contractual Rights    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 38.8 5.1
Accumulated Amortization 4.6 0.7
Intellectual property    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 6.5 5.8
Accumulated Amortization $ 1.8 1.6
Minimum | Contractual Rights    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 5 years  
Minimum | Intellectual property    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 2 years  
Maximum | Contractual Rights    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 50 years  
Maximum | Intellectual property    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 15 years  
Trademarks and brand names    
Indefinite-lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 21.5 $ 34.0