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REORGANIZATION (Details) $ / shares in Units, $ in Thousands					8 Months Ended
	Sep. 09, 2017 USD ($) $ / shares	Sep. 09, 2016 USD ($) $ / shares	Jun. 09, 2016	May 15, 2016 USD ($) $ / shares	Sep. 09, 2016 USD ($) $ / shares	Oct. 07, 2017	Feb. 16, 2017	Dec. 21, 2015 USD ($)	May 01, 2015 USD ($)
Restructuring Support Agreement
Exercise price (in dollars per share) | $ / shares		$ 14.04			$ 14.04
8.625% senior secured second lien notes due 2020
Restructuring Support Agreement
Interest rate (as a percent)							8.625%
12.0% senior secured second lien notes due 2022
Restructuring Support Agreement
Interest rate (as a percent)						12.00%
Predecessor
Restructuring Support Agreement
Interest rate (as a percent)			13.00%
Cash Payments Made To Preferred Holders					$ 11,100
Predecessor | 8.625% senior secured second lien notes due 2020
Restructuring Support Agreement
Interest rate (as a percent)									8.625%
Principal amount									$ 700,000
Predecessor | 12.0% senior secured second lien notes due 2022
Restructuring Support Agreement
Interest rate (as a percent)								12.00%
Principal amount								$ 112,800
Predecessor | 9.25% senior notes due 2022
Restructuring Support Agreement
Interest rate (as a percent)			9.25%
Predecessor | 8.875% senior notes due 2021
Restructuring Support Agreement
Interest rate (as a percent)			8.875%
Predecessor | 9.75% senior notes due 2020
Restructuring Support Agreement
Interest rate (as a percent)			9.75%
Predecessor | 8.0% convertible note due 2020
Restructuring Support Agreement
Interest rate (as a percent)			8.00%
Predecessor | Restructuring of indebtedness and capitalization | The Restructuring Support Agreement | Common Stock
Restructuring Support Agreement
Pro-forma equity of reorganized Entity (as a percent)		4.00			4.00
Predecessor | Restructuring of indebtedness and capitalization | The Restructuring Support Agreement | Series A Preferred Stock
Restructuring Support Agreement
Dividend rate (as a percent)			5.75%
Cash Payments Made To Preferred Holders		$ 11,100
Predecessor | Restructuring of indebtedness and capitalization | The Restructuring Support Agreement | 13.0% senior secured third lien notes due 2022
Restructuring Support Agreement
Pro-forma equity of reorganized Entity (as a percent)				76.50
Cash payment to noteholders				$ 33,800
Predecessor | Restructuring of indebtedness and capitalization | The Restructuring Support Agreement | 8.0% convertible note due 2020
Restructuring Support Agreement
Pro-forma equity of reorganized Entity (as a percent)	4.00
Cash payment to noteholders	$ 15,000
Warrants to purchase shares of pro-forma equity of reorganized Halcon (as a percent)	1.00%
Exercise price (in dollars per share) | $ / shares	$ 14.04
Extension term	4 years
Predecessor | Restructuring of indebtedness and capitalization | The Restructuring Support Agreement | Senior Unsecured Notes Held by Certain Holders
Restructuring Support Agreement
Pro-forma equity of reorganized Entity (as a percent)				15.5
Cash payment to noteholders				$ 37,600
Warrants to purchase shares of pro-forma equity of reorganized Halcon (as a percent)				4.00%
Warrant term				4 years
Exercise price (in dollars per share) | $ / shares				$ 14.04

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
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-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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