Amortization Of Sales Contract Asset (Liability)

No definition available.

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- Definition

depreciation, depletion and amortization production and non-production

+ References

No definition available.

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- Definition

Measure of Segment Profit or Loss used by Chief Operating Decision Maker to make decisions and allocate resources

+ References

No definition available.

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- Definition

Operating Expense (Income) Related to Joint Venture

+ References

No definition available.

+ Details

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- Definition

Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

+ References

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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- Definition

The net amount of nonoperating interest income (expense).

+ References

No definition available.

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- Definition

Amount of cost (reversal of cost) for pension and other postretirement benefits.

+ References

No definition available.

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- Definition

Total amount of reorganization items.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Segment Information (Reconciliation of Segment Income from Operations to Consolidated Income Before Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Income before income taxes									$ 234,047	$ 260,101	$ 203,195
Interest expense, net									6,794	13,689	24,256
Depreciation, depletion and amortization									112,055	119,563	122,464
Accretion on asset retirement obligations									20,548	27,970	30,209
Amortization of sales contracts, net									(434)	11,107	53,985
Costs related to proposed joint venture with Peabody Energy									13,816	0	0
Preference Rights Lease Application settlement income									(39,000)	0	0
Net loss resulting from early retirement of debt and debt restructuring									0	485	2,547
Non-service related postretirement benefit costs									2,053	3,202	1,940
Reorganization items, net	$ 47	$ 0	$ 16	$ (87)	$ 60	$ 560	$ 740	$ 301	(24)	1,661	2,398
Adjusted EBITDA									363,167	437,778	419,697
Coal-Mac LLC
Segment Reporting Information [Line Items]
(Gain) loss on sale of disposal group									9,008	0	0
Lone Mountain Processing, Inc.
Segment Reporting Information [Line Items]
(Gain) loss on sale of disposal group									$ 4,304	$ 0	$ (21,297)