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REORGANIZATION (Details) $ / shares in Units, $ in Thousands			8 Months Ended
	Sep. 09, 2016 USD ($) $ / shares	May 15, 2016 USD ($) $ / shares	Sep. 09, 2016 USD ($) $ / shares	Jul. 10, 2017	Jun. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 21, 2015 USD ($)	May 01, 2015 USD ($)
Restructuring Support Agreement
Principal amount					$ 962,826	$ 812,826
8.625% senior secured second lien notes due 2020
Restructuring Support Agreement
Interest rate (as a percent)					8.625%	8.625%
Principal amount						$ 700,000
12.0% senior secured second lien notes due 2022
Restructuring Support Agreement
Interest rate (as a percent)				12.00%	12.00%	12.00%
Principal amount					$ 112,826	$ 112,826
Predecessor
Restructuring Support Agreement
Cash Payments Made To Preferred Holders			$ 11,100
Predecessor | Series A Preferred Stock
Restructuring Support Agreement
Dividend rate (as a percent)	5.75%
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 | 13.0% senior secured third lien notes due 2022
Restructuring Support Agreement
Interest rate (as a percent)	13.00%		13.00%
Predecessor | 9.25% senior notes due 2022
Restructuring Support Agreement
Interest rate (as a percent)	9.25%		9.25%
Predecessor | 8.875% senior notes due 2021
Restructuring Support Agreement
Interest rate (as a percent)	8.875%		8.875%
Predecessor | 9.75% senior notes due 2020
Restructuring Support Agreement
Interest rate (as a percent)	9.75%		9.75%
Predecessor | 8.0% convertible note due 2017
Restructuring Support Agreement
Interest rate (as a percent)	8.00%		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		4
Predecessor | Restructuring of indebtedness and capitalization | The Restructuring Support Agreement | Series A Preferred Stock
Restructuring Support Agreement
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)		76.5
Cash payment to noteholders		$ 33,800
Predecessor | Restructuring of indebtedness and capitalization | The Restructuring Support Agreement | 8.0% convertible note due 2017
Restructuring Support Agreement
Pro-forma equity of reorganized Entity (as a percent)	4		4
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		$ 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	$ 14.04	$ 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
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-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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