Income Taxes - Income Tax Provision Reconciliation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Federal statutory income tax rate	35.00%	35.00%	35.00%	35.00%
Income tax benefit at federal statutory rate	$ (16.9)	$ (2.7)	$ (21.3)	$ (4.5)
State and foreign taxes, net of federal tax benefit and valuation allowance	0.2	0.8	0.8	1.7
Nondeductible expenses and other	0.3	0.2	0.9	0.3
Impact of deferred tax liabilities for indefinite-lived assets	1.4	0.8	3.1	2.7
Increase/(decrease) in reserves for uncertain tax positions	0.3	(1.7)	3.0	(1.6)
Increase in federal valuation allowance	16.3	2.5	17.4	4.1
Total	$ 1.6	$ (0.1)	$ 3.9	$ 2.7