Debt (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of Long-term Debt

	December 31,
	2017		2016
Debt:
Term Loan B due in November 2022 (Principal of $400,000 less Unamortized Discount of $7,853, 7.47% Weighted Average Interest Rate)	$	392,147	$	—
11.00% Senior Secured Second Lien Notes due 2025	300,000		—
MEDCO Revenue Bonds in Series due September 2025 at 5.75%	102,865		102,865
Term Loan A due in November 2021 (5.92% Weighted Average Interest Rate)	100,000		—
Advance Royalty Commitments (9.42% and 7.73% Weighted Average Interest Rate, respectively)	2,085		2,678
Revolving Credit Facility - CONSOL Coal Resources LP	—		201,000
Less: Unamortized Debt Issuance Costs	21,129		4,343
	875,968		302,200
Less: Amounts Due in One Year*	19,318		373
Long-Term Debt	$	856,650	$	301,827

*Excludes current portion of Capital Lease Obligations of $3,164 and $3,703 at December 31, 2017 and 2016, respectively.

Schedule of Undiscounted Maturities of Long-Term Debt

Annual undiscounted maturities on long-term debt during the next five years and thereafter are as follows:

Year ended December 31,	Amount
2018	$	19,318
2019	19,291
2020	29,265
2021	49,242
2022	384,169
Thereafter	403,665
Total Long-Term Debt Maturities	$	904,950