Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2023

Compensation Related Costs [Abstract]

Schedule of Net Periodic Benefit Cost

The following table details the components of the net periodic benefit cost (credit) for pension obligations:

	Three Months Ended March 31,
	2023		2022
Interest cost	$	5,958	$	3,984
Expected return on plan assets	(5,484)		(7,185)
Amortization of net actuarial loss	137		484
Net periodic benefit cost (credit)	$	611	$	(2,717)

The following table details the components of the net periodic benefit cost for black lung obligations:

	Three Months Ended March 31,
	2023		2022
Service cost	$	513	$	661
Interest cost	1,165		680
Expected return on plan assets	(13)		(13)
Amortization of net actuarial (gain) loss	(708)		314
Net periodic benefit cost	$	957	$	1,642