XML 104 R87.htm IDEA: XBRL DOCUMENT v3.22.0.1

Property, Plant and Equipment - Additional Information (Detail) - USD ($)	1 Months Ended	11 Months Ended	12 Months Ended
	Dec. 31, 2020	Nov. 19, 2020	Dec. 31, 2021	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Impairment charge	$ 0	$ 4,937,143,000	$ 5,000	$ 10,257,000
Proved Oil and Gas Properties
Property, Plant and Equipment [Line Items]
Impairment charge	0	4,400,000,000	0	0
Proved Oil and Gas Properties | Williston Basin
Property, Plant and Equipment [Line Items]
Impairment charge		3,800,000,000
Proved Oil and Gas Properties | Permian Basin
Property, Plant and Equipment [Line Items]
Impairment charge		637,300,000
Unproved oil and gas properties
Property, Plant and Equipment [Line Items]
Impairment charge	$ 0	401,100,000	0	5,400,000
Other property and equipment
Property, Plant and Equipment [Line Items]
Impairment charge		108,300,000
Other property and equipment | Midstream Equipment
Property, Plant and Equipment [Line Items]
Impairment charge		$ 1,600,000	$ 0	$ 0

X

- Definition

The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
-Section 35
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=66906256&loc=d3e66150-109466

+ Details

Name:	us-gaap_ImpairmentOfOilAndGasProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=oas_ProvedOilAndGasPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=oas_WillistonBasinMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=oas_PermianBasinMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=oas_UnprovedOilAndGasPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_PropertyPlantAndEquipmentOtherTypesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=oas_MidstreamEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: