Credit Facility, Debt Covenant, Secured Leverage Ratio

No definition available.

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- Definition

Credit Facility, Debt Covenant, Total Leverage Ratio

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Borrowing Base

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Debt Instrument, Interest Coverage Ratio

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Net Leverage Ratio

+ References

No definition available.

+ Details

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- Definition

Interest Ratio per Credit Facility Covenant

+ References

No definition available.

+ Details

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- Definition

Letters Of Credit, Amount Outstanding

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Letters Of Credit, Maximum Borrowing Capacity

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Maximum Borrowing Capacity, Accordion Feature

+ References

No definition available.

+ Details

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Namespace Prefix:	cnx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

minimum current ratio per credit facility

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Percentage to Mortgage, Value of Proved Developed Producing Reserves

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Percentage to Mortgage, Value of Proved Reserves

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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.

+ Details

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- Details

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- Details

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Revolving Credit Facilities (Details) - USD ($)	6 Months Ended
Revolving Credit Facilities (Details) - USD ($)	Jun. 30, 2021	Apr. 30, 2021	Dec. 31, 2020	Nov. 30, 2020	Apr. 30, 2020	Jun. 30, 2019	Apr. 30, 2019
Short-term Debt [Line Items]
Value of proved reserves, percentage to mortgage	85.00%
Value of proved developing producing reserves, percentage to mortgage	85.00%
Federal Funds Open Rate
Short-term Debt [Line Items]
Basis spread on variable rate	0.50%
Federal Funds Open Rate \| Midstream
Short-term Debt [Line Items]
Basis spread on variable rate	0.50%
One-Month LIBOR
Short-term Debt [Line Items]
Basis spread on variable rate	1.00%
One-Month LIBOR \| Midstream
Short-term Debt [Line Items]
Basis spread on variable rate	1.00%
One-Month LIBOR \| Minimum
Short-term Debt [Line Items]
Basis spread on variable rate	0.75%
One-Month LIBOR \| Minimum \| Midstream
Short-term Debt [Line Items]
Basis spread on variable rate	0.50%
One-Month LIBOR \| Maximum
Short-term Debt [Line Items]
Basis spread on variable rate	1.75%
One-Month LIBOR \| Maximum \| Midstream
Short-term Debt [Line Items]
Basis spread on variable rate	1.50%
LIBOR \| Minimum
Short-term Debt [Line Items]
Basis spread on variable rate	1.75%
LIBOR \| Minimum \| Midstream
Short-term Debt [Line Items]
Basis spread on variable rate	1.50%
LIBOR \| Maximum
Short-term Debt [Line Items]
Basis spread on variable rate	2.75%
LIBOR \| Maximum \| Midstream
Short-term Debt [Line Items]
Basis spread on variable rate	2.50%
Revolving Credit Facility
Short-term Debt [Line Items]
Debt instrument, face amount						$ 160,000,000
Initial borrowing base		$ 1,775,000,000		$ 1,775,000,000	$ 1,900,000,000
Minimum current ratio	1.00
Borrowings outstanding	$ 160,000,000		$ 160,800,000
Letters of credit outstanding	188,567,000		185,272,000
Borrowings and issuance of letters of credit remaining capacity	1,426,433,000		1,428,928,000
Letters of credit aggregate sub-limit				1,775,000,000
Revolving Credit Facility \| Midstream
Short-term Debt [Line Items]
Borrowings outstanding	160,000,000		291,000,000
Letters of credit outstanding	30,000		30,000
Borrowings and issuance of letters of credit remaining capacity	$ 439,970,000
Letters of credit aggregate sub-limit							$ 600,000,000
Increase in available borrowings							250,000,000
Maximum borrowing capacity, letters of credit							$ 100,000,000
Interest coverage ratio	2.50
Revolving credit available for borrowing			308,970,000
Revolving Credit Facility \| Minimum \| Midstream
Short-term Debt [Line Items]
Maximum net leverage ratio	5.25
Total leverage ratio	4.75
Revolving Credit Facility \| Maximum
Short-term Debt [Line Items]
Net leverage ratio	4.00
Revolving Credit Facility \| Maximum \| Midstream
Short-term Debt [Line Items]
Maximum net leverage ratio	5.50
Total leverage ratio	5.25
Secured leverage ratio	3.50
Senior Notes due in January 2029 \| Debt Instrument, Issuance, Period Two
Short-term Debt [Line Items]
Debt instrument, face amount				$ 500,000,000
Stated rate, debt instrument				6.00%
6.50% Senior Notes due March 2026
Short-term Debt [Line Items]
Debt instrument, face amount	$ 400,000,000		$ 400,000,000
Stated rate, debt instrument	6.50%		6.50%
6.50% Senior Notes due March 2026 \| Midstream
Short-term Debt [Line Items]
Stated rate, debt instrument	6.50%
6.50% Senior Notes due March 2026 \| Minimum \| Midstream
Short-term Debt [Line Items]
Debt instrument, face amount	$ 150,000,000
6.50% Senior Notes due March 2026 \| Maximum \| Midstream
Short-term Debt [Line Items]
Debt instrument, face amount	$ 150,000,000