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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

X

- 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

X

- 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

X

- 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

X

- Details

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Namespace Prefix:
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Period Type:

X

- Details

Name:	cdlr_IfrsSubsidiarySaleOfStockAxis=cdlr_CapitalIncreaseJune2024Member
Namespace Prefix:
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Balance Type:
Period Type: