Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2021

Accumulated Other Comprehensive Income (Loss)

Schedule of Accumulated Other Comprehensive Income (Loss)

			Pension,
			Postretirement				Accumulated
			and Other Post-				Other
	Derivative		Employment		Available-for-		Comprehensive
	Instruments		Benefits		Sale Securities		Income (loss)
	(In thousands)
Balance at December 31, 2020	$	(3,891)	$	(31,459)	$	(351)	$	(35,701)
Unrealized losses		71		4,404		108		4,583
Amounts reclassified from accumulated other comprehensive income (loss)		1,256		106		(24)		1,338
Balance at June 30, 2021	$	(2,564)	$	(26,949)	$	(267)	$	(29,780)

Schedule of Comprehensive Income Reclassifications

	Three Months Ended June 30,				Six Months Ended June 30,				Line Item in the Condensed Consolidated
Details About AOCI Components	2021		2020		2021		2020		Statements of Operations
	(In thousands)
Coal hedges	$	—	$	196	$	—	$	196
Interest rate hedges		(632)		(648)		(1,256)		(864)	Interest expense
		—		—		—		—	Provision for (benefit from) income taxes
	$	(632)	$	(452)	$	(1,256)	$	(668)	Net of tax
Pension, postretirement and other post-employment benefits
Amortization of actuarial gains (losses), net 1	$	(590)	$	232	$	(1,181)	$	466	Non-service related pension and postretirement benefit (costs) credits
Amortization of prior service credits		43		27		87		54	Non-service related pension and postretirement benefit (costs) credits
Pension settlement		988		134		988		130	Non-service related pension and postretirement benefit (costs) credits
		—		—		—		—	Provision for (benefit from) income taxes
	$	441	$	393	$	(106)	$	650	Net of tax
Available-for-sale securities 2	$	14	$	141	$	24	$	140	Interest and investment income
		—		—		—		—	Provision for (benefit from) income taxes
	$	14	$	141	$	24	$	140	Net of tax

¹ Production-related benefits and workers’ compensation costs are included in costs to produce coal.

² The gains and losses on sales of available-for-sale-securities are determined on a specific identification basis.