Employee Benefits (Tables)

9 Months Ended

Sep. 27, 2014

Employee Benefits

Schedule of net periodic benefit cost of plans

	Three Months Ended				Nine Months Ended
	September 27,		September 28,		September 27,		September 28,
(Thousands of dollars)	2014		2013		2014		2013
Components of net periodic benefit cost:
Service cost	$     1,924		$  2,342		$  5,784		$  7,026
Interest cost	2,404		2,028		7,225		6,131
Expected return on plan assets	(2,173	)	(1,615	)	(6,537	)	(4,841	)
Amortization and other	524		1,565		1,575		4,744
Agreement termination gain	-		-		-		(3,204	)
Net periodic benefit cost	$     2,679		$  4,320		$  8,047		$  9,856