Other Matters - Third-party Bankruptcy (Details) - Crude oil logistics - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2021	Jan. 21, 2021
Accounts receivable
Liquidated payment		$ 35,000
Goodwill impairment	$ 237,800
Amount owed for deficiency volumes	5,700
Customer contracts
Accounts receivable
Intangible asset impairment	$ 145,800

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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