Borrowing base availability requirement as required under the bank credit agreement.

No definition available.

Name:	den_BorrowingBaseAvailabilityRequirement
Namespace Prefix:	den_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Current Ratio Requirement

+ References

No definition available.

+ Details

Name:	den_CurrentRatioRequirement
Namespace Prefix:	den_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum permitted total Debt to consolidated EBITDAX ratio.

+ References

No definition available.

+ Details

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Namespace Prefix:	den_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=den_SecuredOvernightFinancingRateSOFRMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=den_DividendorOtherRestrictedPaymentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
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Long-Term Debt (Details Textuals) - USD ($)	4 Months Ended	5 Months Ended	9 Months Ended
Long-Term Debt (Details Textuals) - USD ($)	May 03, 2022	Sep. 30, 2022	Sep. 30, 2022	May 04, 2022	Sep. 18, 2020
Senior Secured Bank Credit Facility [Abstract]
Borrowing base	$ 575,000,000			$ 750,000,000	$ 575,000,000
Lender commitments	$ 575,000,000			$ 750,000,000
Commitment fee percentage			0.50%
Minimum
Senior Secured Bank Credit Facility [Abstract]
Current ratio requirement			1.0
Minimum \| Secured Overnight Financing Rate ("SOFR")
Senior Secured Bank Credit Facility [Abstract]
Interest rate margins on senior secured bank credit facility		2.50%
Minimum \| Base rate
Senior Secured Bank Credit Facility [Abstract]
Interest rate margins on senior secured bank credit facility	2.00%	1.50%
Minimum \| Dividend or Other Restricted Payment
Senior Secured Bank Credit Facility [Abstract]
Borrowing base availability requirement				20.00%
Maximum
Senior Secured Bank Credit Facility [Abstract]
Consolidated total debt to consolidated EBITDAX requirement			3.5
Maximum \| Secured Overnight Financing Rate ("SOFR")
Senior Secured Bank Credit Facility [Abstract]
Interest rate margins on senior secured bank credit facility		3.50%
Maximum \| Base rate
Senior Secured Bank Credit Facility [Abstract]
Interest rate margins on senior secured bank credit facility	3.00%	2.50%
Maximum \| Dividend or Other Restricted Payment
Senior Secured Bank Credit Facility [Abstract]
Consolidated total debt to consolidated EBITDAX requirement		1.5