Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014
NET CASH PROVIDED BY OPERATING ACTIVITIES	$ 39,205	$ 5,693
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to property, plant and equipment	(32,629)	(92,043)
Proceeds from life insurance policy	278	352
Proceeds from sales and maturities of investments	3,750	3,750
Purchase of investments	(950)	(3,750)
Proceeds from sale of property, plant and equipment	1,815	1,973
Payments to Acquire Life Insurance Policies	(333)	(340)
Other	37	158
NET CASH USED IN INVESTING ACTIVITIES	(28,032)	(89,900)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash dividends paid	(14,371)	(14,605)
Payments for Repurchase of Common Stock	(14,374)	(21,790)
Proceeds from exercise of stock options	7,265	5,568
Excess tax benefits from exercise of stock options	0	47
NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES	(21,480)	(30,780)
Effect of exchange rate changes on cash	(2,196)	(1,181)
Net decrease in cash and cash equivalents	(12,503)	(116,168)
Cash and cash equivalents at the beginning of the period	62,451	199,301
Cash and cash equivalents at the end of period	$ 49,948	$ 83,133