Facility Consolidation Expenses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Restructuring Cost and Reserve [Line Items]
Impairment of assets	$ 103	$ 0	$ 759	$ 0
Expected Cost	6,906		6,906
Expected Cost Remaining	3,493		3,493
2014 Warehousing Distribution and Manufacturing Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	5,222		5,222
Expected Cost Remaining	2,801		2,801
2014 Atlas Integration Plan [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	1,684		1,684
Expected Cost Remaining	692		692
Asset Impairments [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of assets			759
Asset Impairments [Member] | 2014 Warehousing Distribution and Manufacturing Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of assets			759
Asset Impairments [Member] | 2014 Atlas Integration Plan [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of assets			0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Incurred Cost for the Period			2,654
Expected Cost	6,147		6,147
Other Restructuring [Member] | 2014 Warehousing Distribution and Manufacturing Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Incurred Cost for the Period			1,662
Expected Cost	4,463		4,463
Other Restructuring [Member] | 2014 Atlas Integration Plan [Member]
Restructuring Cost and Reserve [Line Items]
Incurred Cost for the Period			992
Expected Cost	$ 1,684		$ 1,684