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v3.22.4

Equity Method Investments - Textual (Details) $ in Millions | 12 Months Ended | 24 Months Ended |
--- | --- | --- | ---
Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 AUD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cash receipts from Middlemount | $ (1,500,000) | $ (500,000) | $ (23,200,000) |  |
Net income (loss) | 1,319,100,000 | 371,400,000 | (1,873,800,000) |  |
Changes in tax reserves | (1,500,000) | 1,900,000 | (7,700,000) |  |
Valuation allowance | 74,700,000 |  |  |  |
Revenues | 4,981,900,000 | 3,318,300,000 | 2,881,100,000 |  |
Equity method investment, current assets | 2,372,500,000 | 1,801,700,000 |  | $ 2,372,500,000 |
Equity method investment, current liabilities | 918,700,000 | 931,700,000 |  | 918,700,000 |
Revolving Loans |  | 0 |  | 0 |
Equity method investment related to Middlemount |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Revenues | 441,000,000 | 265,000,000 | 123,000,000 |  |
Equity method investment, current assets | 75,200,000 | 83,100,000 |  | 75,200,000 |
Equity method investment ,noncurrent assets | 256,300,000 | 269,900,000 |  | 256,300,000 |
Equity method investment, current liabilities | 135,700,000 | 254,900,000 |  | 135,700,000 |
Equity method investment, noncurrent liabilities | $ 97,700,000 | 79,500,000 |  | $ 97,700,000 |
Equity method investment related to Middlemount |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Insurance recovery |  | 12,500,000 |  |  |
Performance Units |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Stock price measurement period | 3 years |  |  |  |
Return on invested capital period | 3 years |  |  |  |
Equity method investment related to Middlemount |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Cash receipts from Middlemount | $ 168,400,000 | $ 43,500,000 | 0 |  |
Equity interest percentage of revolving loans limit | 50.00% |  |  | 50.00% | 50.00%
Revolving loan limit |  |  |  |  | $ 50
Financing receivable, stated interest rate (in percent) | 10.00% |  |  |  |
Equity method investment related to Middlemount |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Valuation allowance | $ 33,000,000 |  | $ 33,000,000 |  |
Ownership percentage of equity method investment | 50.00% |  |  | 50.00% | 50.00%

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