Benefit Plans

The Company has an unfunded, nonqualified defined benefit plan (“Pension Plan”) for its officers. The Pension Plan is noncontributory and provides benefits based on years of service and compensation during employment. The Company determines pension expense using an actuarial cost method to estimate the total benefits ultimately payable to officers and allocates this cost to service periods. The actuarial assumptions used to calculate pension costs are reviewed annually. The Company contributed $1.2 million and $4.0 million to the Pension Plan during the three and nine months ended October 28, 2017, respectively, and expects to make additional contributions to the Pension Plan of approximately $1.2 million during the remainder of fiscal 2017.

The components of net periodic benefit costs are as follows (in thousands):



	Three Months Ended				Nine Months Ended
	October 28, 2017		October 29, 2016		October 28, 2017		October 29, 2016
Components of net periodic benefit costs:
Service cost	$	874	$	983	$	2,620	$	2,950
Interest cost	1,807		1,920		5,422		5,759
Net actuarial loss	—		301		—		903
Net periodic benefit costs	$	2,681	$	3,204	$	8,042	$	9,612

Net periodic benefit costs are included in selling, general and administrative expenses.