Restructuring (Details) $ in Thousands	3 Months Ended		9 Months Ended			12 Months Ended
	Sep. 27, 2015 USD ($)	Sep. 28, 2014 USD ($)	Dec. 27, 2015 USD ($)	Sep. 27, 2015 USD ($)	Sep. 28, 2014 USD ($)	Dec. 28, 2014 USD ($)	Dec. 29, 2013 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 36			$ 36		$ 215	$ 0
Restructuring Charges	1,168	$ 4,162		4,606	$ 4,162
Payments for Restructuring				$ (2,606)		(1,682)
Rogers, Arkansas facility closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated				500
Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Accelerated Depreciation				$ 1,366		5,365
Restructuring and Related Cost, Expected Cost Remaining	1,012			1,012
Expected Restructuring Charges	14,047			14,047
Restructuring and Related Cost, Incurred Cost				4,606		8,429
Accelerated Depreciation [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	808			808
Expected Restructuring Charges	7,539			7,539
One-time Termination Benefits [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0			0
Expected Restructuring Charges	2,092			2,092
Restructuring and Related Cost, Incurred Cost				195		1,897
Other Restructuring [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Expected Restructuring Charges	14,000			14,000
Other Restructuring [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	204			204
Expected Restructuring Charges	4,416			4,416
Restructuring and Related Cost, Incurred Cost				3,045		1,167
Restructuring Charges, Excluding Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				2,427		$ 1,897
Scenario, Forecast [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring			$ 5,900
Scenario, Forecast [Member] | Rogers, Arkansas facility closure [Member]
Restructuring Cost and Reserve [Line Items]
Expected Restructuring Charges	$ 400			$ 400