Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2019

Defined Contribution Plan [Abstract]

The components of net periodic benefit cost

The components of net periodic benefit cost (income) related to our employee benefit plans are as follows (in thousands):

	Three Months Ended September 30,
	Defined Benefit Pension Plan						Defined Benefit Pension Plan Acquired						Restoration Plan
	2019			2018			2019			2018			2019		2018
Service cost	$	355		$	387		$	—		$	—		$	84	$	73
Interest cost	914			848			43			41			178		149
Expected return on assets	(1,508		)	(1,621		)	(74		)	(73		)	—		—
Net loss amortization	457			378			—			—			139		169
Prior service (credit) cost amortization	(3		)	(3		)	—			—			2		2
Net periodic benefit cost (income)	$	215		$	(11	)	$	(31	)	$	(32	)	$	403	$	393

	Nine Months Ended September 30,
	Defined Benefit Pension Plan						Defined Benefit Pension Plan Acquired						Restoration Plan
	2019			2018			2019			2018			2019		2018
Service cost	$	1,065		$	1,161		$	—		$	—		$	254	$	220
Interest cost	2,741			2,544			127			123			534		447
Expected return on assets	(4,523		)	(4,863		)	(220		)	(218		)	—		—
Net loss amortization	1,370			1,134			—			—			419		508
Prior service (credit) cost amortization	(10		)	(10		)	—			—			5		5
Net periodic benefit cost (income)	$	643		$	(34	)	$	(93	)	$	(95	)	$	1,212	$	1,180