Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Summary of Impact of Adoption of ASU 2017-07 on Results of Operations (Details)

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Summary of Significant Accounting Policies - Summary of Impact of Adoption of ASU 2017-07 on Results of Operations (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cost of goods sold $ 585.0 $ 553.0 $ 554.5
Selling, general and administrative expenses 160.6 163.8 168.1
Operating (loss) $ (17.4) (12.7) (12.5)
Other expense, net   (3.7) (6.9)
Prior to Adoption      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cost of goods sold   555.1 556.1
Selling, general and administrative expenses   164.6 168.7
Operating (loss)   (15.6) (14.7)
Other expense, net   (0.8) (4.7)
ASU 2017-07 | Impact of Adoption      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cost of goods sold   (2.1) (1.6)
Selling, general and administrative expenses   (0.8) (0.6)
Operating (loss)   2.9 2.2
Other expense, net   $ (2.9) $ (2.2)