Quarterly report pursuant to Section 13 or 15(d)

Business and Basis of Presentation Business and Basis of Presentation - Effect of Change in Accounting Principle (Details)

v3.10.0.1
Business and Basis of Presentation Business and Basis of Presentation - Effect of Change in Accounting Principle (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Cost of goods sold $ 243.2 $ 239.4 $ 461.8 $ 456.7
Selling, general and administrative expenses 48.8 46.7 97.0 103.1
Operating income 14.0 11.2 5.1 2.7
Other expense, net $ 0.7 1.5 $ 1.3 2.4
As Reported        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Cost of goods sold   240.2   458.3
Selling, general and administrative expenses   47.2   103.9
Operating income   9.9   0.3
Other expense, net   0.2   0.0
Accounting Standards Update 2017-07 | Impact of Adoption        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Cost of goods sold   (0.8)   (1.6)
Selling, general and administrative expenses   (0.5)   (0.8)
Operating income   1.3   2.4
Other expense, net   $ 1.3   $ 2.4