Litigation and Contingencies (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended
	Jul. 10, 2014	Jan. 01, 2015
Loss Contingencies [Line Items]
Amount reserved for proceedings		$ 2.8
State and Local Jurisdiction
Loss Contingencies [Line Items]
Proceeds from income tax refunds	5.1
Operating Expense | State and Local Jurisdiction
Loss Contingencies [Line Items]
Income tax settlements, tax refunds	4.9
Interest Expense, Net | State and Local Jurisdiction
Loss Contingencies [Line Items]
Income tax settlements, tax refunds	$ 0.2