Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2018

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

The following table presents the components of net periodic benefit cost (in thousands):

	Three Months Ended
	March 31,
	2018		2017
Service cost	$	338	$	80
Interest cost	117		134
Net periodic benefit cost	$	455	$	214