Acquisitions - Schedule of Purchase Price Allocation (Details) - Chevron Asset Acquisition $ in Thousands		5 Months Ended
Nov. 30, 2020 USD ($)	Nov. 30, 2020 USD ($)
Business Acquisition [Line Items]
Cash	$ 701,985
Settlement of pre-existing relationships	6,645
Total consideration	708,630	$ 735,000
Prepaid expenses and other	10,583	10,583
Net property, plant and equipment	725,319	725,319
Other assets	97,247	97,247
Amount attributable to assets acquired	833,149	833,149
Accounts payable	3,347	3,347
Other current liabilities	18,410	18,410
Deferred income taxes	951	951
Other liabilities and credits	101,811	101,811
Amount attributable to liabilities assumed	$ 124,519	$ 124,519

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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