Long-Term Debt Annual Discounted Maturities (Tables)

12 Months Ended

Dec. 31, 2016

Debt Instrument [Line Items]

Schedule of Long-term Debt Instruments [Table Text Block]

	December 31,
	2016		2015
Debt:
Senior Notes due April 2022 at 5.875% (Principal of $1,850,000 plus Unamortized Premium of $4,731 and $5,617, respectively)	$	1,854,731	$	1,855,617
Senior Notes due April 2023 at 8.00% (Principal of $500,000 less Unamortized Discount of $5,656 and $6,561, respectively)	494,344		493,439
Revolving Credit Facility - CNX Coal Resources LP	201,000		185,000
MEDCO Revenue Bonds in Series due September 2025 at 5.75%	102,865		102,865
Senior Notes due April 2020 at 8.25%, Issued at Par Value	74,470		74,470
Senior Notes due March 2021 at 6.375%, Issued at Par Value	20,611		20,611
Advance Royalty Commitments (7.73% and 16.35% Weighted Average Interest Rate, respectively)	2,678		3,964
Other Long-Term Note Maturing in 2018 (Principal of $1,789 and $3,096 less Unamortized Discount of $117 and $327, respectively)	1,672		2,769
Less: Unamortized Debt Issuance Costs	27,699		33,017
	2,724,672		2,705,718
Less: Amounts Due in One Year*	1,677		1,819
Long-Term Debt	$	2,722,995	$	2,703,899

Schedule of Maturities of Long-term Debt [Table Text Block]

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

Year ended December 31,	Amount
2017	$	1,804
2018	672
2019	292
2020	275,740
2021	20,861
Thereafter	2,454,043
Total Long-Term Debt Maturities	$	2,753,412