XML 75 R63.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Revolving Credit Facilities (Details) |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 08, 2018 USD ($) | Mar. 31, 2018 USD ($) | Jun. 30, 2018 USD ($) | Mar. 07, 2018 USD ($) | Dec. 31, 2017 USD ($)
Short-term Debt [Line Items] |  |  |  |  |
Value of proved reserves, percentage to mortgage |  | 80.00% |  |  |
Revolving Credit Facility [Member] |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |
Credit facility, face amount | $ 2,100,000,000 |  |  | $ 1,500,000,000 |
Accordion feature, increased commitment | 3,000,000,000 |  |  |  |
Initial borrowing base | 2,500,000,000 |  |  | 2,000,000,000 |
Letters of credit aggregate sub-limit | $ 650,000,000 |  |  |  |
Minimum threshold to activate springing maturity date |  | $ 500,000,000 |  |  |
Maximum net leverage ratio | 4.00 |  |  |  |
Minimum current ratio | 1 |  |  |  |
Borrowings outstanding |  |  | $ 422,000,000 |  | $ 0
Letters of credit outstanding |  |  | 251,342,000 |  | 239,072,000
Borrowings and issuance of letters of credit remaining capacity |  |  | $ 1,426,658,000 |  | $ 1,260,928,000
5.875% Senior Notes due 2022 [Member] |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |
Stated rate, debt instrument |  |  | 5.875% |  |
8.00% Senior Notes due 2023 [Member] |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |
Stated rate, debt instrument |  |  | 8.00% |  |
CNXM [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |
Letters of credit aggregate sub-limit | $ 600,000,000 |  |  | $ 250,000,000 |
Borrowings outstanding |  |  | $ 11,000,000 |  |
Secured leverage ratio | 3.5 |  |  |  |
Interest coverage ratio | 2.5 |  |  |  |
CNXM [Member] | Minimum [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |
Maximum net leverage ratio | 4.75 |  |  |  |
CNXM [Member] | Maximum [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |
Maximum net leverage ratio | 5.50 |  |  |  |

X
- Definition Credit Facility, Debt Covenant, Secured Leverage Ratio + References No definition available. + Details
Name: | cnx_CreditFacilityDebtCovenantSecuredLeverageRatio
Namespace Prefix: | cnx_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument, Borrowing Base + References No definition available. + Details
Name: | cnx_DebtInstrumentBorrowingBase
Namespace Prefix: | cnx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Debt Instrument, Interest Coverage Ratio + References No definition available. + Details
Name: | cnx_DebtInstrumentInterestCoverageRatio
Namespace Prefix: | cnx_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument, Minimum Threshold to Activate Springing Maturity Date + References No definition available. + Details
Name: | cnx_DebtInstrumentMinimumThresholdtoActivateSpringingMaturityDate
Namespace Prefix: | cnx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Letters Of Credit, Amount Outstanding + References No definition available. + Details
Name: | cnx_LettersOfCreditAmountOutstanding
Namespace Prefix: | cnx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line of Credit Facility, Accordion Feature, Increase Limit + References No definition available. + Details
Name: | cnx_LineofCreditFacilityAccordionFeatureIncreaseLimit
Namespace Prefix: | cnx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Maximum Interest Ratio per Credit Facility Covenant + References No definition available. + Details
Name: | cnx_MaximumInterestRatioperCreditFacilityCovenant
Namespace Prefix: | cnx_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition minimum current ratio per credit facility + References No definition available. + Details
Name: | cnx_Minimumcurrentratiopercreditfacility
Namespace Prefix: | cnx_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage to Mortgage, Value of Proved Reserves + References No definition available. + Details
Name: | cnx_PercentagetoMortgageValueofProvedReserves
Namespace Prefix: | cnx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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 -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
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_ShortTermDebtLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cnx_A5.875SeniorNotesdue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cnx_A8.00SeniorNotesdue2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=cnx_CNXMMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |