Number Of Rigs Decommissioned

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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Loss recognized as a result of the initial and subsequent write-down of a long-lived asset's carrying amount to fair value.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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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.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2020 USD ($) rig
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 105,100	$ 128,200
Abandonments included in depreciation	300	800
Gain on sale of assets	12,336	$ 4,279
Property, plant and equipment, net	3,552,107		$ 3,646,341
Offshore Gulf of Mexico
Property, Plant and Equipment [Line Items]
Gain on sale of assets	9,200
Total consideration	12,000
Property, plant and equipment, net	$ 2,800
Domestic Conventional Asset Group
Property, Plant and Equipment [Line Items]
Number of rigs decommissioned \| rig			2
FlexRig3 Asset Group
Property, Plant and Equipment [Line Items]
Number of rigs decommissioned \| rig			35