Pension Plans (Tables)

9 Months Ended

Sep. 30, 2018

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Pension Cost

Net periodic pension cost for this plan included the following components:

	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018			2017
Service cost	$	22		$	65		$	188		$	192
Interest cost		346			363			1,012			1,092
Expected return on plan assets		(612	)		(476	)		(1,603	)		(1,427	)
Recognized net actuarial loss		151			80			393			324
Net periodic pension cost (benefit)	$	(93	)	$	32		$	(10	)	$	181