Summary of Significant Accounting Policies (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 28, 2013 reportable_segment customer	Dec. 28, 2013 reportable_segment customer	Dec. 29, 2012 reportable_segment	Dec. 31, 2011
BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTable [Line Items]
Number of customers (customer)	100,000	100,000
Number of reportable segments (reportable segment)	3	3	2
Interest and Debt Expense [Abstract]
Unamortized debt issuance costs	$ 22,800,000	$ 22,800,000	$ 26,500,000
Debt issuance costs		9,400,000	7,000,000	4,400,000
Goodwill and Intangible Asset Impairment [Abstract]
Goodwill of discontinued operations	0	0	4,000,000	16,300,000
Impairment of goodwill related to discontinued operations		0	0	13,500,000
Impairment of intangible assets	33,400,000	33,367,000	0	0
Workers' Compensation Discount [Abstract]
Workers' compensation discount rate (percent)		2.00%	3.00%
Insurance Loss Reserves [Abstract]
Self insurance reserve	3,300,000	3,300,000	3,800,000
Advertising Costs [Abstract]
Advertising costs		2,900,000	2,800,000	2,600,000
Income Tax Disclosure [Abstract]
Valuation allowance, Change in deferred tax asset	40,600,000	40,600,000	56,500,000
Valuation allowance	97,100,000	97,100,000
Undiscounted [Member]
Workers' Compensation Discount [Abstract]
Workers' compensation liability	12,900,000	12,900,000	13,500,000
Discounted [Member]
Workers' Compensation Discount [Abstract]
Workers' compensation liability	11,900,000	11,900,000	12,100,000
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, useful life (years)		15 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, useful life (years)		45 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, useful life (years)		10 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, useful life (years)		15 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, useful life (years)		3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, useful life (years)		10 years
Software and Software Development Costs [Member]
Computer Software [Abstract]
Net capitalized computer software	10,400,000	10,400,000	5,100,000
Software and Software Development Costs [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, useful life (years)		3 years
Software and Software Development Costs [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, useful life (years)		7 years
Level 3 [Member] | Nonrecurring fair value [Member]
Goodwill and Intangible Asset Impairment [Abstract]
Impairment of intangible assets		33,367,000	0
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Level 3 [Member] | Nonrecurring fair value [Member]
Goodwill and Intangible Asset Impairment [Abstract]
Remaining net carrying value of other intangible assets	1,933,000	1,933,000	0
Trade Names [Member]
Goodwill and Intangible Asset Impairment [Abstract]
Impairment of intangible assets		33,367,000
Trade Names [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member] | Level 3 [Member] | Nonrecurring fair value [Member]
Goodwill and Intangible Asset Impairment [Abstract]
Remaining net carrying value of other intangible assets	$ 1,933,000	$ 1,933,000