XML 65 R51.htm IDEA: XBRL DOCUMENT v3.6.0.2
Summary of Accounting Policies - New Accounting Standards (Details) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Other long-term assets $ 25.0 $ 23.4
Long-term debt $ (596.4) (595.6)
Accounting Standards Update 2015-03 | Reclassification    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Other long-term assets   (3.1)
Long-term debt   $ 3.1