Subsequent Event (Details)	0 Months Ended
Apr. 16, 2014
Subsequent Event [Line Items]
Subsequent Event, Date	Apr. 16, 2014
Subsequent Event, Description	CONSOL Energy closed on the private placement of $1,600,000 of 5.875% senior notes due 2022 (the "Notes"). The Notes are guaranteed by substantially all of CONSOL Energy's wholly-owned domestic restricted subsidiaries. CONSOL Energy intends to use a portion of the net proceeds of the sale of the Notes to purchase all of the 8.00% senior notes due 2017 (the "2017 Notes") that are validly tendered pursuant to its previously announced tender offer and consent solicitation in respect of the 2017 Notes.

Describes the event or transaction that occurred between the balance sheet date and the date the financial statements are issued or available to be issued.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 855

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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