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PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 15, 2021 USD ($) | Sep. 30, 2021 USD ($) rig | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) rig | Mar. 31, 2022 USD ($) rig | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) rig | Dec. 31, 2020 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) rig transaction | Jun. 30, 2021 USD ($) | Sep. 30, 2021 USD ($) rig service | Dec. 31, 2021 USD ($) rig
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation expense |  |  |  | $ 97,500,000 |  | $ 102,700,000 |  |  |  | $ 293,500,000 | $ 312,400,000 |  |
Abandonments included in depreciation |  |  |  | 1,400,000 |  | 1,300,000 |  |  |  | 5,200,000 | 1,700,000 |  |
Additions |  |  |  |  |  |  |  |  |  | 1,459,000 |  |  |
Sales |  |  |  |  |  |  |  |  |  | 47,308,000 |  |  |
Property, plant and equipment, net |  | $ 3,127,287,000 |  | 2,987,107,000 |  |  |  |  |  | 2,987,107,000 |  | $ 3,127,287,000 |
Assets held-for-sale |  | $ 71,453,000 |  | 25,604,000 |  |  |  |  |  | 25,604,000 |  | 71,453,000 |
Asset impairment charge |  |  |  | $ 0 |  | 2,130,000 |  |  |  | 4,363,000 | 56,414,000 |  |
Payments to acquire property, plant and equipment held-for-sale |  |  |  |  |  |  |  |  |  | 18,228,000 | 0 |  |
Domestic Non Super Spec Asset Group | North America Solutions |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of rigs, held-for -sale | rig |  |  |  |  |  |  | 71 |  |  |  |  |  |
Additions |  |  |  |  |  |  |  |  | $ 13,500,000 |  |  |  |
Sales |  |  |  |  |  |  |  |  |  | 1,900,000 |  | $ 6,500,000 |
FlexRig4 Asset Group |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of rigs, held-for -sale | rig |  | 8 |  |  |  |  |  |  |  |  |  | 8 |
Property, plant and equipment, net |  | $ 55,600,000 |  |  |  |  |  |  |  |  |  | $ 55,600,000 |
Total consideration |  | $ 86,500,000 |  |  |  |  |  |  |  | $ 35,300,000 |  |  |
Period for delivery and commissioning of rigs sold (in months) |  |  |  |  |  |  |  |  |  | 12 months |  |  |
FlexRig4 Asset Group | United Arab Emirates |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of rigs, held-for -sale | rig |  | 2 |  | 5 |  |  |  |  |  | 5 |  | 2 |
Property, plant and equipment, net |  |  |  | $ 34,500,000 |  |  |  |  |  | $ 34,500,000 |  |  |
Gain (loss) on sale of assets |  |  |  |  |  |  |  |  |  | 1,100,000 |  |  |
Selling costs |  |  |  | $ 15,700,000 |  |  |  |  |  | $ 15,700,000 |  |  |
FlexRig4 Asset Group | United States |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of rigs, held-for -sale | rig |  | 6 |  | 3 |  |  |  |  |  | 3 |  | 6 |
Assets held-for-sale |  |  |  | $ 12,900,000 |  |  |  |  |  | $ 12,900,000 |  |  |
Asset impairment charge |  |  |  |  |  |  |  |  |  | 6,900,000 |  |  |
Payments to acquire property, plant and equipment held-for-sale |  |  |  |  |  |  |  |  |  | 18,200,000 |  |  |
FlexRig4 Asset Group | United States | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Asset impairment charge |  |  | $ 6,000,000 |  |  |  |  |  |  |  |  |  |
Assets Related To Trucking Services and Casino Running Services |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of assets |  |  |  | $ 3,100,000 |  |  |  |  |  | $ 2,800,000 |  |  |
Assets Related To Trucking Services and Casino Running Services | North America Solutions |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of rigs, held-for -sale | rig |  |  |  | 3 | 2 |  |  |  |  | 3 |  |  |
Property, plant and equipment, net |  | $ 23,200,000 |  |  |  |  |  |  |  |  |  | $ 23,200,000 |
Gain (loss) on sale of assets | $ (3,400,000) |  |  | $ (26,600) | $ 1,200,000 |  |  |  |  |  |  |  |
Assets held-for-sale | $ 6,000,000 | $ 8,800,000 |  |  |  |  |  |  |  |  |  | $ 8,800,000 |
Number of services offered | service |  |  |  |  |  |  |  |  |  |  |  | 2 |
Percentage of consolidated revenue (as a percent) |  | 2.80% |  |  |  |  |  |  |  |  |  | 2.80% |
Number of transactions | transaction |  |  |  |  |  |  |  |  |  | 2 |  |  |
Partial Rig Substructures | North America Solutions |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of rigs, held-for -sale | rig |  |  |  |  |  |  |  |  |  |  |  |  | 2
Property, plant and equipment, net |  |  |  | $ 2,000,000 |  |  |  |  |  | $ 2,000,000 |  |  |
Asset impairment charge |  |  |  |  |  |  |  |  |  | $ 1,900,000 |  |  |
Scrap value |  |  |  |  | $ 100,000 |  |  |  |  |  |  |  | $ 100,000
International FlexRig | International Solutions |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of rigs, held-for -sale | rig |  |  |  | 2 | 2 |  |  |  |  | 2 |  |  | 2
Property, plant and equipment, net |  |  |  | $ 3,400,000 |  |  |  |  |  | $ 3,400,000 |  |  |
Total consideration |  |  |  |  | $ 900,000 |  |  |  |  |  |  |  |
Assets held-for-sale |  |  |  | 900,000 |  |  |  |  |  | 900,000 |  |  |
Asset impairment charge |  |  |  |  |  |  |  |  |  | 2,500,000 |  |  |
Replacement Value of Damaged Drill Pipe |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of assets |  |  |  | $ 9,900,000 |  |  | $ 4,300,000 |  |  | $ 21,600,000 | 10,200,000 |  |
Offshore Platform Rig |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of assets |  |  |  |  |  | $ (800,000) |  |  |  |  | $ (13,000,000) |  |
Offshore Platform Rig | Offshore Gulf of Mexico |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of assets |  |  |  |  |  |  |  | $ 9,200,000 |  |  |  |  |
Excess Drilling Equipment and Spares |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of assets |  |  |  |  |  |  | $ (23,000,000) |  |  |  |  |  |

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