Components of Coal Workers' Pneumoconiosis (CWP) and Workers' Compensation Net Periodic Benefit Costs (Tables)

3 Months Ended

Mar. 31, 2024

Retirement Benefits [Abstract]

Schedule of Changes in Accumulated Postemployment Benefit Obligations

The components of Net Periodic Benefit Cost are as follows:

	CWP				Workers' Compensation
	Three Months Ended March 31,				Three Months Ended March 31,
	2024		2023		2024		2023
Service Cost	$	746	$	578	$	1,464	$	1,399
Interest Cost	2,066		2,071		573		628
Amortization of Actuarial Loss (Gain)	109		(261)		(540)		(512)
State Administrative Fees and Insurance Bond Premiums	—		—		464		545
Net Periodic Benefit Cost	$	2,921	$	2,388	$	1,961	$	2,060