Post-Retirement Health Care (Tables)

3 Months Ended

Mar. 31, 2018

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

The following table sets forth the components of net periodic benefit costs included in the Condensed Consolidated Statements of Comprehensive Income (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Service cost	$	213	$	185
Interest cost	197		206
Amortization of net (gain) loss	37		7
Net periodic post-retirement benefit cost	$	447	$	398