Acquisitions (Narrative) (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012	Sep. 16, 2013 employee	Dec. 31, 2012
Business Acquisition [Line Items]
Acquisition related costs	$ 5,200,000	$ 8,700,000	$ 1,500,000
Gain on bargain purchase	0	17,262,000	0
Intangible asset, useful life (years)	11 years
Goodwill	185,849,000	186,436,000	187,415,000
National Envelope Acquisition [Member]
Business Acquisition [Line Items]
Acquisition related costs		7,500,000
Number of employees (employee)				1,600
Acquisition purchase price				34,062,000
Acquistion purchase price, company common stock				6,000,000
Gain on bargain purchase				17,262,000
Gain on bargain purchase, tax expense				6,800,000
Other intangible assets				4,430,000
Express Label Acquisition [Member]
Business Acquisition [Line Items]
Acquisition purchase price					5,100,000
Annual net sales prior to acquisition by the Company					5,400,000
Goodwill					100,000
Leashold interests [Member]
Business Acquisition [Line Items]
Intangible asset, useful life (years)	18 years
Leashold interests [Member] | National Envelope Acquisition [Member]
Business Acquisition [Line Items]
Other intangible assets				4,400,000
Intangible asset, useful life (years)				20 years 0 months
Customer relationships [Member]
Business Acquisition [Line Items]
Intangible asset, useful life (years)	8 years
Customer relationships [Member] | Express Label Acquisition [Member]
Business Acquisition [Line Items]
Other intangible assets					3,000,000
Intangible asset, useful life (years)					10 years
Trade names [Member] | Express Label Acquisition [Member]
Business Acquisition [Line Items]
Other intangible assets					$ 300,000
Intangible asset, useful life (years)					10 years