Quarterly report pursuant to Section 13 or 15(d)

Business and Basis of Presentation - Narrative (Details)

v3.10.0.1
Business and Basis of Presentation - Narrative (Details)
$ in Millions
Jan. 01, 2018
USD ($)
Sep. 30, 2018
USD ($)
Dec. 31, 2017
USD ($)
Apr. 01, 2016
Company
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Number of companies following business separation | Company       2
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Accumulated deficit   $ 15.3 $ 31.8  
Prepaid expenses and other current assets   22.5 31.8  
Accounts and notes receivable, net   $ (115.9) $ (79.7)  
Accounting Standards Update 2018-02        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Cumulative effect of adoption of ASU 2018-02 as of January 1 $ 12.6      
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 | Impact of Adoption        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Accumulated deficit 4.1      
Prepaid expenses and other current assets 0.4      
Accounts and notes receivable, net $ 4.5