Restructuring (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 25, 2016	Dec. 31, 2015	Dec. 27, 2015	Dec. 31, 2014	Dec. 28, 2014
Restructuring Cost and Reserve [Line Items]
Proceeds from Sale of Buildings		$ 4,300
Restructuring Reserve		100
Restructuring Charges		1,458	$ 6,012		$ 8,429
Rogers, Arkansas facility closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 22			$ 6,012		$ 8,400
Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Accelerated Depreciation	248		1,641			5,365
Restructuring and Related Cost, Incurred Cost		1,458		6,012		8,400
Accelerated Depreciation [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Expected Restructuring Charges	7,254
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, Incurred Cost	0		114			1,897
Expected Restructuring Charges	2,011
Other Restructuring [Member] | Rogers, Arkansas facility closure [Member]
Restructuring Cost and Reserve [Line Items]
Expected Restructuring Charges	14,500
Other Restructuring [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Expected Restructuring Charges	15,900
Other Restructuring [Member] | Rogers, Arkansas facility closure [Member] | Cost of Sales, Restructuring Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	1,210		$ 4,257	$ 2,688		$ 1,167
Expected Restructuring Charges	$ 6,634
Building [Member]
Restructuring Cost and Reserve [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property		$ (1,436)