Assets Held for Sale and Discontinued Operations - Narrative (Details) $ in Millions	Dec. 31, 2020 USD ($)
Discontinued Operations, Held-for-sale or Disposed of by Sale \| King's Quay Floating Production System
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Carrying value of assets and liabilities reflected as held for sale	$ 250.1

Amount classified as assets attributable to disposal group held for sale or disposed of.

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