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v3.20.2

Long-Term Debt - Schedule of Long-Term Debt (Details) - USD ($) | Sep. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Apr. 30, 2019
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Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, net of issuance costs | $ 2,600,462,000 |  | $ 2,754,443,000 |  |  |
Less: Unamortized Debt Issuance Costs | 16,940,000 |  | 8,990,000 |  |  |
Less: Amounts Due in One Year | 22,488,000 |  | 0 |  |  |
Long-Term Debt | $ 2,577,974,000 |  | 2,754,443,000 |  |  |
Senior Notes Due March 2027 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated rate, debt instrument | 7.25% |  |  |  |  |
Debt instrument, face amount | $ 700,000,000 |  | 500,000,000 |  |  |
Debt instrument, unamortized premium | 6,955,000 |  |  |  |  |
Long-term debt, net of issuance costs | $ 706,955,000 |  | 500,000,000 |  |  |
Senior Notes Due March 2026 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated rate, debt instrument | 6.50% |  |  |  |  |
Debt instrument, face amount | $ 400,000,000 |  | 400,000,000 |  |  |
Debt instrument, unamortized discount | 4,062,000 |  | 4,625,000 |  |  |
Long-term debt, net of issuance costs | $ 395,938,000 |  | 395,375,000 |  |  |
Senior Notes Due April 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated rate, debt instrument | 5.875% |  |  | 5.875% |  |
Debt instrument, face amount | $ 363,348,000 |  | 894,307,000 |  |  |
Debt instrument, unamortized premium | 276,000 |  | 1,001,000 |  |  |
Long-term debt, net of issuance costs | $ 363,624,000 |  | 895,308,000 |  |  |
Convertible Senior Notes Due May 2026 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated rate, debt instrument | 2.25% |  |  |  |  |
Debt instrument, face amount | $ 345,000,000 |  |  |  |  |
Debt instrument, unamortized discount | 111,621,000 |  |  |  |  |
Long-term debt, net of issuance costs | 233,379,000 |  | 0 |  |  |
Cardinal States Gathering Company Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, unamortized discount | 1,165,000 |  |  |  |  |
CSG Holdings II LLC Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, unamortized discount | 460,000 |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | $ 160,000,000 | $ 2,100,000,000
Borrowings outstanding | 410,000,000 |  | 661,000,000 |  |  |
Revolving Credit Facility | CNX Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, net of issuance costs | 410,000,000 |  | 661,000,000 |  |  |
Revolving Credit Facility | CNX Midstream Partners LP Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, net of issuance costs | 343,000,000 |  | 311,750,000 |  |  |
Line of Credit |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, face amount |  | $ 175,000,000 |  |  |  |
Line of Credit | Cardinal States Gathering Company Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Borrowings outstanding | 118,776,000 |  |  |  |  |
Long-term debt, net of issuance costs | 117,611,000 |  | 0 |  |  |
Line of Credit | CSG Holdings II LLC Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Borrowings outstanding | 47,355,000 |  |  |  |  |
Long-term debt, net of issuance costs | $ 46,895,000 |  | $ 0 |  |  |

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- 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=120391452&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=120398452&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=120400017&loc=d3e572229-122910 + Details
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