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Earnings Per Share (EPS) - Additional Information (Details) - shares |  | 12 Months Ended
--- | --- | ---
Jul. 04, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Earnings Per Share |  |  |
Shares repurchased |  | 215,000 |
Number of stock acquired |  |  | 114,000,000
February 2024 for capital increase |  |  |
Earnings Per Share |  |  |
Number of new stock issued |  | 39,500,000 |
Shares repurchased | 214,791 |  |
June 2024 for capital increase |  |  |
Earnings Per Share |  |  |
Number of new stock issued |  | 28,000 |

X
- Definition Number of shares of stock issued during the period pursuant to acquisitions. + References No definition available. + Details
Name: | cdlr_IfrsStockIssuedDuringPeriodSharesAcquisitions
Namespace Prefix: | cdlr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of new stock issued during the period. + References No definition available. + Details
Name: | cdlr_IfrsStockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | cdlr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References No definition available. + Details
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Namespace Prefix: | cdlr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_EarningsPerShareLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | cdlr_IfrsSubsidiarySaleOfStockAxis=cdlr_CapitalIncreaseFebruary2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | cdlr_IfrsSubsidiarySaleOfStockAxis=cdlr_CapitalIncreaseJune2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |