Acquisitions (Narrative) (Details) (USD $)	3 Months Ended			0 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Dec. 28, 2013	Sep. 16, 2013 National Envelope Acquisition [Member] employee	Dec. 31, 2012 Express Label Acquisition [Member]	Sep. 16, 2013 Leasehold interests [Member] National Envelope Acquisition [Member]	Dec. 31, 2012 Customer relationships [Member] Express Label Acquisition [Member]	Dec. 31, 2012 Trade Names [Member] Express Label Acquisition [Member]
Business Acquisition [Line Items]
Acquisition related costs	$ 1,900,000	$ 400,000
Number of employees (employee)				1,600
Acquisition purchase price				34,062,000	5,100,000
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
Finite-lived intangible assets				3,780,000		3,800,000	3,000,000	300,000
Intangible asset, useful life (years)						20 years 0 months	10 years	10 years
Annual net sales prior to acquisition by the Company					5,400,000
Goodwill	$ 186,426,000		$ 186,436,000		$ 100,000