Defined Benefit Plan (Tables)

6 Months Ended

Jun. 30, 2015

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

Schedule of components of net periodic pension income

Components of net periodic pension benefit are as follows (in thousands):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2015			2014			2015			2014
Service cost	$	245		$	217		$	487		$	434
Interest cost	85			179			169			357
Expected return on plan assets	(396		)	(458		)	(788		)	(915		)
Prior service cost amortization	36			36			71			72
Deferred loss amortization	11			—			22			—
Net periodic pension benefit	$	(19	)	$	(26	)	$	(39	)	$	(52	)