Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2021

Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [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 March 31,
	Defined Benefit Pension Plan				Defined Benefit Pension Plan Acquired				Restoration Plan
	2021		2020		2021		2020		2021		2020
Service cost	$	—	$	423	$	—	$	—	$	—	$	85
Interest cost	628		837		24		41		121		160
Expected return on assets	(1,437)		(1,668)		(58)		(84)		—		—
Net loss amortization	520		533		3		2		118		193
Prior service (credit) cost amortization	—		(3)		—		—		—		2
Net periodic benefit (income) cost	$	(289)	$	122	$	(31)	$	(41)	$	239	$	440