Employee Benefit Plans (Tables)

3 Months Ended

Mar. 30, 2013

Employee Benefit Plans [Abstract]

Components Of Net Periodic Benefit Cost

(THOUSANDS OF DOLLARS)	THREE MONTHS ENDED
	MARCH 30,		MARCH 31,
	2013		2012
Service cost	$	12	$	12
Interest cost		566		560
Expected return on plan assets		(612)		(577)
Amortization of unrecognized loss		329		288
Amortization of prior service cost		3		3
Net Periodic Benefit Cost	$	298	$	286