XML 82 R9999.htm IDEA: XBRL DOCUMENT
v3.23.2

Label | Element | Value
--- | --- | ---
Jamalco [Member] |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual | us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual | $ 43,700,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual | us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual | $ 43,700,000

X
- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479328/805-10-50-2 + Details
Name: | us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_BusinessAcquisitionAxis=cenx_JamalcoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |