Facility Consolidation Expenses (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014		Dec. 28, 2013	Dec. 29, 2012
Restructuring Cost and Reserve [Line Items]
Impairment of assets	$ 1,133		$ 0	$ 0
Expected Cost	8,377
Expected Cost Remaining	1,730
2014 Warehousing Distribution and Manufacturing Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	6,531
Expected Cost Remaining	1,351
2014 Atlas Integration Plan [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	1,846
Expected Cost Remaining	379
Asset Impairments [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of assets	1,133	[1]
Asset Impairments [Member] | 2014 Warehousing Distribution and Manufacturing Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of assets	1,133	[1]
Asset Impairments [Member] | 2014 Atlas Integration Plan [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of assets	0	[1]
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Incurred Cost for the Period	5,514
Expected Cost	7,244	[2]
Other Restructuring [Member] | 2014 Warehousing Distribution and Manufacturing Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Incurred Cost for the Period	4,047
Expected Cost	5,398	[2]
Other Restructuring [Member] | 2014 Atlas Integration Plan [Member]
Restructuring Cost and Reserve [Line Items]
Incurred Cost for the Period	1,467
Expected Cost	$ 1,846	[2]

[1] Asset impairments under these plans are classified as "loss on impairments" in the Company's Consolidated Statements of Operations.

[2] Other costs incurred under these plans are classified as "facility consolidation expenses" in the Company's Consolidated Statements of Operations.