XML 40 R120.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Maximum Potential Total of Future Payments Under Commitment Instruments (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	$ 311,013
Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	204,726
Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	106,287
Less Than 1 Year
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	259,469
Less Than 1 Year | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	154,726
Less Than 1 Year | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	104,743
1-3 Years
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	51,544
1-3 Years | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	50,000
1-3 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	1,544
3-5 Years
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
3-5 Years | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
3-5 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Beyond 5 Years
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Beyond 5 Years | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Beyond 5 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Firm Transportation | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	197,776
Firm Transportation | Less Than 1 Year | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	148,526
Firm Transportation | 1-3 Years | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	49,250
Firm Transportation | 3-5 Years | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Firm Transportation | Beyond 5 Years | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Other | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	6,950
Other | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	9,254
Other | Less Than 1 Year | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	6,200
Other | Less Than 1 Year | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	7,970
Other | 1-3 Years | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	750
Other | 1-3 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	1,284
Other | 3-5 Years | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Other | 3-5 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Other | Beyond 5 Years | Letters of Credit:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Other | Beyond 5 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Employee-Related | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	2,600
Employee-Related | Less Than 1 Year | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	2,600
Employee-Related | 1-3 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Employee-Related | 3-5 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Employee-Related | Beyond 5 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Environmental | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	12,763
Environmental | Less Than 1 Year | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	12,503
Environmental | 1-3 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	260
Environmental | 3-5 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Environmental | Beyond 5 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Financial Guarantees | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	81,670
Financial Guarantees | Less Than 1 Year | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	81,670
Financial Guarantees | 1-3 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Financial Guarantees | 3-5 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	0
Financial Guarantees | Beyond 5 Years | Surety Bonds:
Loss Contingencies [Line Items]
Maximum potential total of future payments under commitments	$ 0

X

- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=118943654&loc=d3e12069-110248

+ Details

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

X

- 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

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_SuretyBondMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=cnx_BalanceOnFirstAnniversaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=cnx_MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=cnx_MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=cnx_BeyondFiveYearsOfBalanceSheetDateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_OtherCommitmentsAxis=cnx_FirmTransportationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_OtherCommitmentsAxis=cnx_OtherCommitmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_OtherCommitmentsAxis=cnx_EmployeeRelatedCommitmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_OtherCommitmentsAxis=cnx_EnvironmentRelatedCommitmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_OtherCommitmentsAxis=us-gaap_FinancialGuaranteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: