Income Taxes - Income Tax Provision Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Federal statutory income tax rate	35.00%	35.00%
Income tax benefit at federal statutory rate	$ (6.5)	$ (4.4)
State and foreign taxes, net of federal tax benefit and valuation allowance	0.4	0.4
Nondeductible expenses and other	0.4	0.3
Impact of deferred tax liabilities for indefinite-lived assets	1.5	1.5
Increase in reserves for uncertain tax positions	1.7	0.1
Increase in federal valuation allowance	6.1	4.0
Total income tax provision	$ 3.6	$ 1.9