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Acquisitions (Pro Forma Financial Information of National Envelope) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Business Acquisition [Line Items]
Net sales	$ 498,935us-gaap_SalesRevenueNet	$ 480,576us-gaap_SalesRevenueNet	$ 479,410us-gaap_SalesRevenueNet	$ 490,119us-gaap_SalesRevenueNet	$ 509,873us-gaap_SalesRevenueNet	$ 442,781us-gaap_SalesRevenueNet	$ 406,540us-gaap_SalesRevenueNet	$ 418,614us-gaap_SalesRevenueNet	$ 1,949,040us-gaap_SalesRevenueNet	$ 1,777,808us-gaap_SalesRevenueNet	$ 1,738,293us-gaap_SalesRevenueNet
Loss from continuing operations	(19,437)	(10,794)	(39,301)	(16,787)	(59,468)	13,427	(18,996)	(20,490)	(86,319)	(85,527)	(80,528)
Loss per share from continuing operations - basic	$ (0.29)	$ (0.16)	$ (0.59)	$ (0.25)	$ (0.90)	$ 0.21	$ (0.30)	$ (0.32)	$ (1.29)	$ (1.32)	$ (1.27)
Loss per share from continuing operations - diluted	$ (0.29)	$ (0.16)	$ (0.59)	$ (0.25)	$ (0.90)	$ 0.16	$ (0.30)	$ (0.32)	$ (1.29)	$ (1.32)	$ (1.27)
National Envelope Acquisition [Member]
Business Acquisition [Line Items]
Pro forma net sales										2,027,799
Pro forma loss from continuing operations										$ (114,127)
Pro forma loss per share from continuing operations - basic										$ (1.73)
Pro forma loss per share from continuing operations - diluted										$ (1.73)