XML 107 R80.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Capital Stock - Schedule of Capital Transactions (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Number of Shares Outstanding [Roll Forward] |  |  |
Proceeds from exercise of options | $ 0.3 | $ 0.2 | $ 0.2
SVS |  |  |
Number of Shares Outstanding [Roll Forward] |  |  |
Number of shares issued, beginning balance (in shares) | 103,000,000.0 | 106,100,000 | 110,500,000
Number of shares outstanding, beginning balance (in shares) | 103,000,000.0 | 106,100,000 | 110,500,000
Issued from treasury (in shares) | 50,000.00 | 70,000.00 | 30,000.00
Cancelled under NCIB (in shares) | (2,700,000) | (3,140,000) | (4,400,000)
Conversion of MVS into SVS in connection with the Secondary Offerings (in shares) | 18,600,000 |  |
Number of shares issued, ending balance (in shares) | 119,000,000.0 | 103,000,000.0 | 106,100,000
Number of shares outstanding, ending balance (in shares) | 119,000,000.0 | 103,000,000.0 | 106,100,000
MVS |  |  |
Number of Shares Outstanding [Roll Forward] |  |  |
Number of shares issued, beginning balance (in shares) | 18,600,000 | 18,600,000 | 18,600,000
Number of shares outstanding, beginning balance (in shares) | 18,600,000 | 18,600,000 | 18,600,000
Issued from treasury (in shares) | 0 | 0 | 0
Cancelled under NCIB (in shares) | 0 | 0 | 0
Conversion of MVS into SVS in connection with the Secondary Offerings (in shares) | (18,600,000) |  |
Number of shares issued, ending balance (in shares) | 0 | 18,600,000 | 18,600,000
Number of shares outstanding, ending balance (in shares) | 0 | 18,600,000 | 18,600,000
Options | SVS |  |  |
Number of Shares Outstanding [Roll Forward] |  |  |
Shares issued (in shares) | 30,000.00 | 20,000.00 | 20,000.00
RSUs | SVS |  |  |
Number of Shares Outstanding [Roll Forward] |  |  |
Shares issued (in shares) | 20,000.00 | 50,000.00 | 10,000.00
Value of shares issued upon vesting of RSUs | $ 0.2 | $ 0.4 | $ 0.1

X
- Definition Number Of Shares Issued Through Conversion Of Shares, Equity + References No definition available. + Details
Name: | cls_NumberOfSharesIssuedThroughConversionOfSharesEquity
Namespace Prefix: | cls_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Shares Outstanding [Roll Forward] + References No definition available. + Details
Name: | cls_NumberOfSharesOutstandingRollForward
Namespace Prefix: | cls_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock Issued During Period, Shares, Treasury Stock Reissued1 + References No definition available. + Details
Name: | cls_StockIssuedDuringPeriodSharesTreasuryStockReissued1
Namespace Prefix: | cls_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock Issued During Period, Shares, Treasury Stock Reissued, Share-based Compensation + References No definition available. + Details
Name: | cls_StockIssuedDuringPeriodSharesTreasuryStockReissuedSharebasedCompensation
Namespace Prefix: | cls_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock Issued During Period, Value, Treasury Stock Reissued, Share-based Compensation + References No definition available. + Details
Name: | cls_StockIssuedDuringPeriodValueTreasuryStockReissuedSharebasedCompensation
Namespace Prefix: | cls_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Stock Repurchased and Retired During Period, Shares + References No definition available. + Details
Name: | cls_StockRepurchasedAndRetiredDuringPeriodShares1
Namespace Prefix: | cls_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares issued by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_106_d&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_NumberOfSharesIssued
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- 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 2023-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_79_a_iv&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_NumberOfSharesOutstanding
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow from the exercise of options. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2023-01-01 -Paragraph 17 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_17&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ProceedsFromExerciseOfOptions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=cls_SubordinateVotingSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=cls_MultipleVotingSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=cls_EmployeeStockOption1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=cls_RestrictedStockUnitsRSU1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |