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Acquisition of Jamalco - Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions | May 02, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Less: identifiable assets acquired and liabilities assumed |  |  |
Deferred credit - preliminary bargain purchase gain |  | $ (103.3) | $ 0.0
General Alumina Holdings Limited |  |  |
Consideration transferred |  |  |
Cash paid | $ 8.3 |  |
Total consideration transferred | 8.3 |  |
Less: identifiable assets acquired and liabilities assumed |  |  |
Cash and cash equivalents | 19.4 |  |
Restricted cash | 8.3 |  |
Inventories | 93.4 |  |
Accounts receivable - net | 8.0 |  |
Prepaid and other current assets | 7.7 |  |
Property, plant and equipment - net | 102.2 |  |
Deferred tax assets | 108.1 |  |
Other long-term assets | 25.5 |  |
Accounts payable, trade | (92.9) |  |
Accrued and other current liabilities | (33.9) |  |
Asset retirement obligations | (101.4) |  |
Total identifiable net assets acquired | 144.4 |  |
Less: noncontrolling interest | (32.8) |  |
Deferred credit - preliminary bargain purchase gain | (103.3) |  |
Fair value allocated to net assets acquired, net of bargain purchase gain | $ 8.3 |  |

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