Income Taxes - Reconciliation of Income Tax Provision (Details) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 30, 2012	Sep. 30, 2012	Jun. 24, 2012	Mar. 25, 2012	Dec. 29, 2013	Dec. 30, 2012	Dec. 25, 2011
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Income tax expense (benefit) at federal statutory rate									$ (11.1)	$ (40.1)	$ (7.6)
State taxes, net of federal tax benefit and valuation allowance									1.8	0.7	3.1
Difference in tax rates between U.S. and foreign									(2.6)	(1.5)	(0.1)
Nondeductible expense									0.7	0.3	0.4
Increase (decrease) in reserve for uncertain tax positions									(1.4)	0.1	(1.7)
Transaction costs									0	0.1	2.3
Changes to indefinite life items and separate state deferred taxes									(0.4)	(3.0)	1.5
Impact of purchase accounting									0	0	0
Goodwill impairment									0	27.6	0
Total	(2.9)	0.2	(0.1)	2.8	(5.4)	1.3	6.6	(4.1)	0	(1.6)	1.9
Foreign
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Increase (decrease) in valuation allowance									0	0	(0.7)
Federal
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Increase (decrease) in valuation allowance									$ 13.0	$ 14.2	$ 4.7