Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The following table summarizes key information related to the Company’s pension plans and other postretirement benefits:

	Pension Benefits						Other Postretirement Benefits
	Three Months Ended						Three Months Ended
	March 31,						March 31,
	2019			2018			2019			2018
Service cost — benefits earned during the period	$	133		$	147		$	—		$	1
Interest cost on projected benefit obligation	1,215			1,122			87			82
Expected return on assets	(1,219		)	(1,393		)	—			—
Amortization of prior service cost	—			—			1			—
Amortization of net loss (gain)	501			452			(44		)	(10		)
Net expense	$	630		$	328		$	44		$	73