Condensed Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 28, 2014	Sep. 30, 2015	Sep. 28, 2014
Net Income	$ 27,858	$ 37,997	$ 61,010	$ 161,987
(Loss) Income from Discontinued Operations, net of taxes	0	(14,889)	0	13,552
Income from Continuing Operations	27,858	52,886	61,010	148,435
Other Comprehensive (Loss) Income from Continuing Operations, net of taxes			(13,169)
Comprehensive Income	24,087	41,091	47,841	163,506
Continuing operations
Change in unrecognized benefit plan losses arising during the period, net of taxes of $1,303 and $(2) for the three months ended September 30, 2015 and September 28, 2014, respectively, and $(434) and $(1,325) for the nine months ended September 30, 2015 and September 28, 2014, respectively	2,021	(4)	(673)	(2,030)
Adjustment for previously unrecognized benefit plan gains and losses included in net income, net of taxes of $2 and $(17) for the three months ended September 30, 2015 and September 28, 2014, respectively, and $7 and $(56) for the nine months ended September 30, 2015 and September 28, 2014, respectively.	4	(26)	11	(85)
Change in unrecognized benefit plan gains and losses, net of taxes	2,025	(30)	(662)	(2,115)
Change in unrealized holding gain arising during the period, net of taxes of $(1,152) and $3,077 for the three months ended September 30, 2015 and September 28, 2014, respectively, and $(2,340) and $3,077 for the nine months ended September 30, 2015 and September 28, 2014	(1,785)	4,772	(3,628)	4,772
Change in foreign currency translation adjustments, net of taxes of $(741) and $(1,076) for the three months ended September 30, 2015 and September 28, 2014, respectively, and $(1,148) and $(743) for the nine months ended September 30, 2015 and September 28, 2014, respectively.	(4,011)	(1,648)	(8,879)	(1,138)
Other Comprehensive (Loss) Income from Continuing Operations, net of taxes	(3,771)	3,094	(13,169)	1,519
Comprehensive Income	24,087	55,980	47,841	149,954
Discontinued operations
Comprehensive Income	$ 0	$ (14,889)	$ 0	$ 13,552