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Commitments and Contingencies - Additional Information (Details) bbl in Millions, Bcf in Millions, $ in Millions		6 Months Ended
	Mar. 23, 2017 USD ($)	Jun. 30, 2019 USD ($) Bcf bbl
Loss Contingencies [Line Items]
Required delivery time-frame under volume commitments time frame agreements		10 years
Estimable future commitments under agreements | $		$ 643.1
Mirada Litigation | Pending
Loss Contingencies [Line Items]
Damages sought (in excess of) | $	$ 100.0
Crude Oil
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported (in MMBbl)		48.3
Natural gas liquids
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported (in MMBbl)		39.5
Natural Gas
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported (in MMBbl) | Bcf		900.2
Water
Loss Contingencies [Line Items]
Minimum quantity to be delivered or transported (in MMBbl)		31.7

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Oil and Gas Delivery Commitments and Contracts, Maximum Term

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Quantity of oil and gas subject to delivery commitment.

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

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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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