Defined Benefit Plans (Tables)

9 Months Ended

Oct. 28, 2017

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Components of net periodic defined benefit pension cost related to the Company's defined benefit plans

The components of net periodic defined benefit pension cost for the three and nine months ended October 28, 2017 and October 29, 2016 related to the Company’s defined benefit plans are as follows (in thousands):

	Three Months Ended October 28, 2017
	SERP		Swiss Pension Plan			Total
Service cost	$	—	$	492		$	492
Interest cost	461		22			483
Expected return on plan assets	—		(48		)	(48		)
Net amortization of unrecognized prior service credit	—		(7		)	(7		)
Net amortization of actuarial losses	38		78			116
Net periodic defined benefit pension cost	$	499	$	537		$	1,036

	Nine Months Ended October 28, 2017
	SERP		Swiss Pension Plan			Total
Service cost	$	—	$	1,452		$	1,452
Interest cost	1,382		64			1,446
Expected return on plan assets	—		(143		)	(143		)
Net amortization of unrecognized prior service credit	—		(20		)	(20		)
Net amortization of actuarial losses	114		230			344
Net periodic defined benefit pension cost	$	1,496	$	1,583		$	3,079

	Three Months Ended October 29, 2016
	SERP		Swiss Pension Plan			Total
Service cost	$	—	$	381		$	381
Interest cost	460		22			482
Expected return on plan assets	—		(46		)	(46		)
Net amortization of unrecognized prior service credit	—		(7		)	(7		)
Net amortization of actuarial losses	39		47			86
Net periodic defined benefit pension cost	$	499	$	397		$	896

	Nine Months Ended October 29, 2016
	SERP		Swiss Pension Plan			Total
Service cost	$	—	$	1,152		$	1,152
Interest cost	1,380		66			1,446
Expected return on plan assets	—		(139		)	(139		)
Net amortization of unrecognized prior service credit	—		(21		)	(21		)
Net amortization of actuarial losses	116		141			257
Net periodic defined benefit pension cost	$	1,496	$	1,199		$	2,695