Amortisation, Intangible Assets Acquired Through Business Combination Other Than Goodwill

No definition available.

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- Definition

Cash Acquired In Connection With Acquisition As Of Acquisition Date

+ References

No definition available.

+ Details

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- Definition

Number Of Manufacturing Facilities

+ References

No definition available.

+ Details

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- Definition

Release of indirect tax liabilities previously recorded in connection with a previous acquisition recognized in acquisition costs

+ References

No definition available.

+ Details

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- Definition

The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_f&doctype=Appendix&subtype=B
-URIDate 2023-03-23

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- Definition

The amount of acquisition-related costs recognised as an expense for transactions that are recognised separately from the acquisition of assets and the assumption of liabilities in business combinations. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph m
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_m&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

The increase (decrease) in goodwill. [Refer: Goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B67
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B67_d&doctype=Appendix&subtype=B
-URIDate 2023-03-23

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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

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- Definition

The amount of measurement period adjustments recognised for particular assets, liabilities, non-controlling interests or items of consideration if the initial accounting for a business combination is incomplete. The measurement period is the period after the acquisition date during which the acquirer may adjust the provisional amounts recognised for a business combination. [Refer: Non-controlling interests; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B67
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B67_a_iii&doctype=Appendix&subtype=B
-URIDate 2023-03-23

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- Definition

The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

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- Details

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- Details

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- Details

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- Details

Name:	ifrs-full_BusinessCombinationsAxis=cls_ImpaktHoldingsLLCImpaktMember
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- Details

Name:	ifrs-full_BusinessCombinationsAxis=cls_PotentialAcquisitionsMember
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Acquisitions - Narrative (Details) $ in Millions	3 Months Ended	12 Months Ended
Acquisitions - Narrative (Details) $ in Millions	Mar. 31, 2022 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Nov. 01, 2021 USD ($) facility
Disclosure of detailed information about business combination [line items]
Costs related to acquisition activities				$ 7.3
PCI
Disclosure of detailed information about business combination [line items]
Percentage of voting equity interests acquired					100.00%
Number of manufacturing facilities \| facility					5
Consideration transferred, acquisition-date fair value					$ 314.7
Cash acquired					$ 11.4
Increase (decrease) in goodwill	$ 2.2
Customer intangible assets acquired		$ 18.0
Costs related to acquisition activities			$ 0.4	4.8
PCI \| Deferred income taxes liability
Disclosure of detailed information about business combination [line items]
Changes to preliminary purchase price allocation	0.5
PCI \| Customer Intangible Assets
Disclosure of detailed information about business combination [line items]
Changes to preliminary purchase price allocation	$ 2.7
Impakt
Disclosure of detailed information about business combination [line items]
Adjustment of acquisition costs related to indirect tax liabilities recognized				$ 1.2
Potential Acquisitions
Disclosure of detailed information about business combination [line items]
Costs related to acquisition activities		$ 1.0