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.

No definition available.

+ Details

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Balance Type:	na
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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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Balance Type:	debit
Period Type:	duration

- Definition

Total amount of product committed to be supplied under existing contracts or agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1207
-Paragraph (a)
-Subparagraph (2)

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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

- Details

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- Details

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- Details

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Data Type:	na
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- Details

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- Details

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- Details

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Commitments and Contingencies - Additional Information (Details) bbl in Millions, Mcf in Millions	Mar. 23, 2017 USD ($)	Nov. 06, 2018 USD ($) bbl Mcf	Sep. 30, 2018 USD ($) bbl Mcf
Loss Contingencies [Line Items]
Estimable future commitments under agreements \| $			$ 550,500,000
Mirada Litigation [Member] \| Pending Litigation [Member]
Loss Contingencies [Line Items]
Damages sought (in excess of) \| $	$ 100,000,000
Crude Oil [Member]
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported			50.9
Natural Gas Liquids [Member]
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported			43.5
Natural Gas [Member]
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported \| Mcf			901.3
Produced Water [Member]
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported			30.8
Subsequent Event [Member]
Loss Contingencies [Line Items]
Estimable future commitments under agreements \| $		$ 650,200,000
Subsequent Event [Member] \| Crude Oil [Member]
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported		50.9
Subsequent Event [Member] \| Natural Gas Liquids [Member]
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported		43.5
Subsequent Event [Member] \| Natural Gas [Member]
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported \| Mcf		901.3
Subsequent Event [Member] \| Produced Water [Member]
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported		30.8