Accumulated Other Comprehensive Loss - Summary of Changes in Accumulated Other Comprehensive Income (Details) $ in Millions	9 Months Ended
Sep. 30, 2015 USD ($)
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Pension and postretirement plans, Beginning balance	$ (44.4)
Amounts reclassified from accumulated other comprehensive income, net of tax	2.2
Pension and postretirement plans, Ending balance	$ (42.2)

The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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