Represents the amount of consideration transferred by the Entity.

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Represents the number of long-term crude oil sales contracts to which the entity is committed.

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No definition available.

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Represents the number of long-term natural gas sales contracts to which the entity is committed.

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Represents the period of commitment for production from the date of first production.

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No definition available.

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Represents the obligation amount of commitment related to drilling rigs. There are two separate trigger dates that must be met.

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No definition available.

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Amount of termination penalties on non-cancelable purchase commitments in lieu of paying the remaining drilling commitments.

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No definition available.

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Represents the number of tracts of land for a net acreage purchase.

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No definition available.

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Represents the price per acre for the acquired acreage.

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No definition available.

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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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No definition available.

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Amount of contractual obligation due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Amount of contractual obligation due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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- Definition

Fractional interest owned based on working interests or other economic arrangements of lease area on which wells have not been drilled or completed to a point that would permit the production of commercial quantities of oil and gas regardless of whether or not such area contains proved reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (b)

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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No definition available.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 55
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- References

No definition available.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount of other commitment maturing in the fourth fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount of other commitment maturing in the next fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount of other commitment maturing in the second fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands			6 Months Ended		12 Months Ended
COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	Jun. 20, 2017 USD ($) a $ / a	Jun. 15, 2017 USD ($) $ / a	Jun. 30, 2017 USD ($) item	Jun. 30, 2016 USD ($)	Dec. 31, 2016 a item $ / a	Jun. 14, 2017 $ / a
Commitments and contingencies
Rent expense			$ 2,000
Approximate future minimum lease payments for all non-cancelable operating leases
Remaining period in 2017			1,695
2018			3,430
2019			2,997
2020			1,811
2021			1,497
Thereafter			2,180
Total			13,610
Obligation under contractual commitments
Remaining period in 2017			18,344
2018			16,244
Total			34,588
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Remaining period in 2017			2,222
2018			1,260
2020			3,000
Total			6,482
Predecessor
Commitments and contingencies
Rent expense				$ 4,300
Drilling rig commitments
Commitments and contingencies
Non-cancelable termination penalties			9,700
Approximate future minimum lease payments for all non-cancelable operating leases
Drilling rig commitments			$ 34,600
Gathering, transportation and sales \| North Dakota and West Texas
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Number of long-term crude oil sales contracts to which the entity is committed \| item			10
Number of long-term natural gas sales contracts to which the entity is committed \| item			9
Gathering, transportation and sales \| North Dakota and West Texas \| Minimum
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Period of commitment for production from the date of first production			1 year
Gathering, transportation and sales \| North Dakota and West Texas \| Maximum
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Period of commitment for production from the date of first production			10 years
Agreement \| Southern Tract
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Acreage of working interest acquired (in acres) \| a					6,720
Agreement \| Northern Tract
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Acreage of working interest acquired (in acres) \| a					8,320
Agreement \| Ward County Texas Assets
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Number of tracts \| item					2
Price per Acre \| $ / a					11,000	13,000
Agreement \| Ward County Texas Assets \| Maximum
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Acreage of working interest acquired (in acres) \| a					15,040
Agreement \| Ward County Texas Assets \| Southern Tract
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Required contingent payment		$ 5,000
Price per Acre \| $ / a		13,000
Agreement \| Ward County Texas Assets \| Northern Tract
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Price per Acre \| $ / a		13,000
Agreement \| Ward County Texas Assets \| Drilling rig commitments
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Acreage of working interest acquired (in acres) \| a	7,680
Required contingent payment	$ 5,000
Price per Acre \| $ / a	10,000
Agreement \| Ward County Texas Assets \| Drilling rig commitments \| Northern Tract
Other contractual commitments for, among other things, stacking charges on certain drilling rig commitments
Required contingent payment		$ 5,000