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Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2020


			Pension,
			Postretirement				Accumulated
			and Other Post-				Other
	Derivative		Employment		Available-for-		Comprehensive
	Instruments		Benefits		Sale Securities		Income (loss)

	(In thousands)
January 1, 2019	$	3,328	$	40,311	$	(343)	$	43,296
Unrealized gains (losses)		4,648		(27,692)		508		(22,536)
Amounts reclassified from accumulated other comprehensive income (loss)		(10,540)		(4,346)		(185)		(15,071)
Balance at December 31, 2019	$	(2,564)	$	8,273	$	(20)	$	5,689
Unrealized losses		(3,076)		(38,533)		(66)		(41,675)
Amounts reclassified from accumulated other comprehensive income (loss)		1,749		(1,199)		(265)		285
Balance at December 31, 2020	$	(3,891)	$	(31,459)	$	(351)	$	(35,701)


	December 31,		December 31,		Line Item in the Condensed Consolidated
Details About AOCI Components	2020		2019		Statements of Operations

Coal hedges	$	392	$	9,480	Revenues
Interest rate hedges		(2,141)		1,060	Interest expense
		—		—	Provision for (benefit from) income taxes
	$	(1,749)	$	10,540	Net of tax

Pension, postretirement and other post-employment benefits
Amortization of actuarial gains (losses), net ¹	$	191	$	3,020	Non-service related pension and postretirement benefit (costs) credits
Amortization of prior service credits		112		—	Non-service related pension and postretirement benefit (costs) credits
Pension settlement		896		1,326	Non-service related pension and postretirement benefit (costs) credits
	$	1,199	$	4,346	Total before tax
		—		—	Provision for (benefit from) income taxes
	$	1,199	$	4,346	Net of tax

Available-for-sale securities ²	$	265	$	185	Interest and investment income
		—		—	Provision for (benefit from) income taxes
	$	265	$	185	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.