v3.7.0.1

Fair Value of Financial Instruments - Schedule of Carrying Amount and Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Financial liabilities:
Senior Notes		$ 130,000
Predecessor [Member]
Financial assets:
U.S. Treasury Bonds			$ 1,448
Fair Value [Member]
Financial assets:
Collateral Security account	$ 2,952
Derivative Assets	587
Financial liabilities:
Exit Credit Facility	140,320
Derivative Liability	10,633
Fair Value [Member] \| Predecessor [Member]
Financial assets:
Collateral Security account			2,812
U.S. Treasury Bonds			1,448
Derivative Assets			11,081
Financial liabilities:
Fixed rate debentures			3,057
First Lien Credit Facility			234,665
Second Lien Credit Facility			74,912
Senior Notes			25,090
Carrying Amount[ Member]
Financial assets:
Collateral Security account	2,952
Derivative Assets	587
Financial liabilities:
Exit Credit Facility	140,320
Derivative Liability	$ 10,633
Carrying Amount[ Member] \| Predecessor [Member]
Financial assets:
Collateral Security account			2,812
U.S. Treasury Bonds			1,636
Derivative Assets			11,081
Financial liabilities:
Fixed rate debentures			1,636
First Lien Credit Facility			234,665
Second Lien Credit Facility			74,912
Senior Notes			$ 165,368

Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Glossary Convertible Security
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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- References

No definition available.

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- References

No definition available.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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- Definition

This element represents the current portion of investments which are not defined as or included in marketable (debt, equity, or other) securities that are pledged or subject to withdrawal restrictions.

+ References

No definition available.

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- Definition

Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.

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- Definition

Long term exit credit facility.

+ References

No definition available.

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Balance Type:	credit
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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 first lien credit facility.

+ References

No definition available.

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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 second lien credit facility.

+ References

No definition available.

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WARREN RESOURCES INC 10-K