Pension (Tables)

6 Months Ended

Jun. 30, 2018

Pension And Profit Sharing Tables Abstract

Components of Net Benefit Cost

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Service cost	$	9		$	9		$	18		$	18
Interest cost	$	10		$	14		$	20		$	28
Expected return on plan assets		(17	)		(20	)		(34	)		(40	)
Amortization of prior service costs		—			2			—			4
Amortization of actuarial loss		22			26			44			52
Total non-service cost	$	15		$	22		$	30		$	44
Net periodic pension cost	$	24		$	31		$	48		$	62