Pension And Other Post Retirement Benefits Net Periodic Benefit Cost For Other Post Retirement Plans Applicalbe To Continuing And Discontinued Operations (Details) - Other Post Retirement Benefits - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 28, 2014	Sep. 30, 2015	Sep. 28, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	$ 153	$ 318	$ 461	$ 1,634
Continuing operations
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	153	130	461	467
Discontinued operations
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	$ 0	$ 188	$ 0	$ 1,167