Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2012

Employee Benefits

Schedule of net periodic cost of benefits of plans

	Three Months Ended						Six Months Ended
	June 30,			July 2,			June 30,			July 2,
(Thousands of dollars)	2012			2011			2012			2011
Components of net periodic benefit cost:
Service cost	$	2,210		$	1,805		$	4,436		$	3,732
Interest cost	2,177			2,249			4,435			4,543
Expected return on plan assets	(1,617		)	(1,684		)	(3,209		)	(3,319		)
Amortization and other	1,567			992			3,097			2,043
Settlement	1,796			-			1,796			-
Net periodic benefit cost	$	6,133		$	3,362		$	10,555		$	6,999