Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 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 June 30,
	Defined Benefit Pension Plan				Defined Benefit Pension Plan Acquired				Restoration Plan
	2021		2020		2021		2020		2021		2020
Service cost	$	—	$	405	$	—	$	—	$	—	$	46
Interest cost	657		850		22		40		139		156
Expected return on assets	(1,273)		(1,320)		(47)		(67)		—		—
Net loss amortization	(19)		553		—		3		10		108
Prior service (credit) cost amortization	—		(4)		—		—		—		1
Loss due to curtailment	—		151		—		—		—		12
Net periodic benefit (income) cost	$	(635)	$	635	$	(25)	$	(24)	$	149	$	323

	Six Months Ended June 30,
	Defined Benefit Pension Plan				Defined Benefit Pension Plan Acquired				Restoration Plan
	2021		2020		2021		2020		2021		2020
Service cost	$	—	$	828	$	—	$	—	$	—	$	131
Interest cost	1,285		1,687		46		81		260		316
Expected return on assets	(2,710)		(2,988)		(105)		(151)		—		—
Net loss amortization	501		1,086		3		5		128		301
Prior service (credit) cost amortization	—		(7)		—		—		—		3
Loss due to curtailment	—		151		—		—		—		12
Net periodic benefit (income) cost	$	(924)	$	757	$	(56)	$	(65)	$	388	$	763