Facility Consolidation Expenses (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015		Sep. 27, 2014
Restructuring Cost and Reserve [Line Items]
Accrued Balance at December 27, 2014				$ 0
2015 Expenses To Date	[1]			2,264
2015 Cash Payments				(2,070)
Accrued Balance at September 26, 2015		$ 194		194
Total Costs Incurred To Date	[1]	7,778		7,778
Total Expected Costs		8,960		8,960
Impairment of assets		0	$ (104)	0	[2]	$ (759)
2014 Warehousing Distribution and Manufacturing Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance at December 27, 2014				0
2015 Expenses To Date				1,786
2015 Cash Payments				(1,786)
Accrued Balance at September 26, 2015		0		0
Total Costs Incurred To Date		5,832		5,832
Total Expected Costs		6,574		6,574
2014 Atlas Integration Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance at December 27, 2014				0
2015 Expenses To Date				202
2015 Cash Payments				(202)
Accrued Balance at September 26, 2015		0		0
Total Costs Incurred To Date		1,670		1,670
Total Expected Costs		1,670		1,670
2015 Corporate Office Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance at December 27, 2014				0
2015 Expenses To Date				276
2015 Cash Payments				(82)
Accrued Balance at September 26, 2015		194		194
Total Costs Incurred To Date		276		276
Total Expected Costs		716		716
Asset Impairments [Member]
Restructuring Cost and Reserve [Line Items]
Total Costs Incurred To Date	[2]	1,133		1,133
Total Expected Costs		$ 1,133		$ 1,133

[1] Costs incurred under these plans are classified as "facility consolidation expenses" in the Company's Consolidated Condensed Statements of Operations.

[2] Asset impairments under these plans, when applicable, are classified as "loss on impairments" in the Company's Consolidated Condensed Statements of Operations.