XML 46 R86.htm IDEA: XBRL DOCUMENT v3.2.0.727
Accounts Receivable, Net of Allowance (Schedule of Activity, Allowance for Doubtful Accounts) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Allowance for Doubtful Accounts [Rollforward]    
Allowance for doubtful accounts at beginning of year $ 15.7 $ 11.3
Provision for doubtful accounts 1.8 6.1
Amounts charged against the allowance (3.6) (1.7)
Allowance for doubtful accounts at end of year $ 13.9 $ 15.7