Retirement Plans (Tables)

9 Months Ended

Sep. 30, 2017

Compensation And Retirement Disclosure [Abstract]

Net periodic pension cost

Net periodic pension cost is as follows:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2017			2016			2017			2016
Interest cost	$	63		$	68		$	189		$	204
Expected return on assets		(74	)		(80	)		(222	)		(240	)
Amortization of net loss		24			20			72			61
Net periodic pension cost	$	13		$	8		$	39		$	25
Company contributions	$	—		$	—		$	—		$	—