Costs Associated with Exit and Restructuring Activities - June 2013 Plan (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 27, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 27, 2015 USD ($)	Dec. 31, 2015 employee	Dec. 31, 2014 USD ($) employee
June 2013 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 0		$ 0
Restructuring charges
Elimination of workforce | employee					350
Planned Costs	22,600,000		22,600,000
Actual costs incurred	27,596,000		27,596,000
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	0	$ 348,000	0	$ 1,402,000
June 2013 Plan | Cost of Goods
Restructuring charges
Planned Costs	1,800,000		1,800,000
Actual costs incurred	3,637,000		3,637,000
Total restructuring, impairment and restructuring related charges
Restructuring related charges	0	0	0	75,000
June 2013 Plan | Operating Earnings
Restructuring charges
Planned Costs	20,800,000		20,800,000
Actual costs incurred	23,959,000		23,959,000
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	0	$ 348,000	0	$ 1,327,000
June 2013 Plan | Inventory write-down | Cost of Goods
Restructuring charges
Planned Costs	800,000		800,000
Actual costs incurred	1,143,000		1,143,000
June 2013 Plan | Equipment relocation | Cost of Goods
Restructuring charges
Planned Costs	900,000		900,000
Actual costs incurred	1,792,000		1,792,000
June 2013 Plan | Other charges | Cost of Goods
Restructuring charges
Planned Costs	100,000		100,000
Actual costs incurred	702,000		702,000
June 2013 Plan | Workforce reduction | Operating Earnings
Restructuring charges
Planned Costs	10,150,000		10,150,000
Actual costs incurred	9,615,000		9,615,000
June 2013 Plan | Asset impairment charge | Operating Earnings
Restructuring charges
Planned Costs	3,000,000		3,000,000
Actual costs incurred	4,139,000		4,139,000
June 2013 Plan | Other charges, including pension termination costs | Operating Earnings
Restructuring charges
Planned Costs	7,650,000		7,650,000
Actual costs incurred	$ 10,205,000		$ 10,205,000
Amended June 2013 Plan
Restructuring charges
Planned Costs						$ 4,000,000
Amended June 2013 Plan | Workforce reduction
Restructuring charges
Elimination of workforce | employee						130
Foreign Pension Plans | Amended June 2013 Plan | UNITED KINGDOM
Restructuring charges
Planned Costs						$ 2,000,000
Foreign Pension Plans | Amended June 2013 Plan | Asset impairment charge
Restructuring charges
Planned Costs						$ 2,000,000