Total cost of shares repurchased divided by the total number of shares repurchased.

No definition available.

Name:	cdlr_IfrsSharesAcquiredAverageCostPerShare
Namespace Prefix:	cdlr_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

+ Details

Name:	cdlr_IfrsSharesIssuedPricePerShare
Namespace Prefix:	cdlr_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- 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

- 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

Name:	cdlr_IfrsStockRepurchasedDuringPeriodShares
Namespace Prefix:	cdlr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- 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_DisclosureOfClassesOfShareCapitalLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The increase in equity through the issue of equity instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d_iii&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_IssueOfEquity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The nominal value of capital arising from issuing ordinary shares. [Refer: Issued capital]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 78
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78_e&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_IssuedCapitalOrdinaryShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of share options exercised in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-Subparagraph b
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_b_iv&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 79
-Subparagraph a
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_79_a_iv&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_NumberOfSharesOutstanding
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The nominal value per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 79
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_79_a_iii&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ParValuePerShare
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow for share issue costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 17
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_PaymentsForShareIssueCosts
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow to acquire or redeem entity's shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 17
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17_b&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_PaymentsToAcquireOrRedeemEntitysShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow from the exercise of options.

+ References

+ Details

Name:	ifrs-full_ProceedsFromExerciseOfOptions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from issuing shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 17
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17_a&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ProceedsFromIssuingShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of shares in the entity held by the entity or by its subsidiaries or associates. [Refer: Total for all associates [member]; Total for all subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 79
-Subparagraph a
-Clause vi
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_79_a_vi&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	cdlr_IfrsSubsidiarySaleOfStockAxis=cdlr_CapitalIncreaseJun2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	cdlr_IfrsSubsidiarySaleOfStockAxis=cdlr_CapitalIncreaseFebruary2024Member
Namespace Prefix:
Data Type:	na
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Period Type:

Issued Share Capital - Additional Information (Details) kr / shares in Units, € in Thousands, kr in Thousands						12 Months Ended
	Jul. 04, 2024 EUR (€) shares	Jul. 04, 2024 kr / shares kr / shares	Jun. 24, 2024 EUR (€) shares	Feb. 15, 2024 EUR (€)	Feb. 15, 2024 DKK (kr)	Dec. 31, 2024 EUR (€) shares	Dec. 31, 2023 EUR (€)	Dec. 31, 2022 EUR (€)	Jun. 24, 2024 kr / shares	Feb. 15, 2024 kr / shares	Jan. 01, 2024 EUR (€) shares	Jan. 01, 2024 DKK (kr) kr / shares shares	Dec. 31, 2023 kr / shares
Issued share capital
Share capital issued											€ 41,838	kr 311,409
Number of share capital issued \| shares											311,409,868	311,409,868
Par value per share \| kr / shares		kr 1										kr 1
Gross capital raised before transaction costs \| €						€ 154,956		€ 183,250
Transaction costs \| €						€ 3,014	€ 6,955	€ 5,174
Shares repurchased \| shares						215,000
Average price per share \| kr / shares		kr 68.28
Repurchase of treasury shares \| €	€ 1,300					€ 1,283
Number of shares in entity held by entity \| shares						93,538
Capital increase June 2024
Issued share capital
Issued for capital increase \| €						€ 88
February 2024 for capital increase
Issued share capital
Par value per share \| kr / shares									kr 1				kr 1
Number of new stock issued \| shares						39,500,000
Share issued per share \| kr / shares										kr 44.5
Gross capital raised before transaction costs \| €				€ 155,000
Proceeds from exercise of options \| kr					kr 39,500
Exercised during the year \| shares			27,715
Transaction costs \| €			€ 88	€ 3,000
Shares repurchased \| shares	214,791