Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2020

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, 2019	$	(2,564)	$	8,273	$	(20)	$	5,689
Unrealized losses		(2,974)		(15,953)		206		(18,721)
Amounts reclassified from AOCI		668		(650)		(140)		(122)
Balance at June 30, 2020	$	(4,870)	$	(8,330)	$	46	$	(13,154)

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	2020		2019		2020		2019		Statement of Operations
	(In thousands)
Coal hedges	$	196	$	1,743	$	196	$	2,104	Revenues
Interest rate hedges		(648)		514		(864)		1,029	Interest expense
		—		—		—		—	Provision for (benefit from) income taxes
	$	(452)	$	2,257	$	(668)	$	3,133	Net of tax
Pension, postretirement and other post-employment benefits
Amortization of actuarial gains (losses), net	$	232	$	—	$	466	$	—	Non-service related pension and postretirement benefit (costs) credits
Amortization of prior service credits		27		—		54		—	Non-service related pension and postretirement benefit (costs) credits
Pension settlement		134		429		130		429	Non-service related pension and postretirement benefit (costs) credits
		—		—		—		—	Provision for (benefit from) income taxes
	$	393	$	429	$	650	$	429	Net of tax
Available-for-sale securities	$	141	$	15	$	140	$	15	Interest and investment income
		—		—		—		—	Provision for (benefit from) income taxes
	$	141	$	15	$	140	$	15	Net of tax