Facility Consolidation Expenses (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 25, 2016	Jun. 27, 2015
Restructuring Cost and Reserve [Line Items]
Accrued Balance		$ 341	$ 0
Expenses To Date	[1]	1,814	1,650
Cash Payments		1,175	1,650
Accrued Balance		980	0
Total Costs Incurred To Date		10,279
Expected Cost Remaining		10,279
2014 Warehousing Distribution and Manufacturing Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance		0	0
Expenses To Date		1,738	1,445
Cash Payments		1,048	1,445
Accrued Balance		690	0
Total Costs Incurred To Date		7,806
Expected Cost Remaining		7,806
Environmental Remediation Costs Recognized [Abstract]
Accrual for Environmental Loss Contingencies		690
2014 Atlas Integration Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance		0	0
Expenses To Date		0	205
Cash Payments		0	205
Accrued Balance		0	0
Total Costs Incurred To Date		1,669
Expected Cost Remaining		1,669
2015 Corporate Office Consolidation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance		341	0
Expenses To Date		76	0
Cash Payments		127	0
Accrued Balance		290	$ 0
Total Costs Incurred To Date		804
Expected Cost Remaining		$ 804

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