Retirement and Other Employee Benefits (Tables)

9 Months Ended

Sep. 29, 2017

Retirement Benefits [Abstract]

Net periodic benefit costs of pension plans and post-retirement plans

The following table sets forth the net periodic benefit costs of our pension plans and post-retirement plans (U.S. dollars in millions):

	Quarter ended						Nine months ended
	September 29, 2017			September 30, 2016			September 29, 2017			September 30, 2016
Service cost	$	1.4		$	1.3		$	4.2		$	3.9
Interest cost	1.6			1.7			4.7			4.9
Expected return on assets	(0.8		)	(1.0		)	(2.5		)	(2.8		)
Amortization of net actuarial loss	0.3			0.3			0.9			0.9
Net periodic benefit costs	$	2.5		$	2.3		$	7.3		$	6.9