XML 39 R13.htm IDEA: XBRL DOCUMENT
v3.20.4

Assets Classified As Held For Sale | 12 Months Ended
--- | ---
Dec. 31, 2020
Non-current Assets Held For Sale And Discontinued Operations [Abstract] |
Assets Classified As Held For Sale | ASSETS CLASSIFIED AS HELD FOR SALE:From time to time, in connection with our restructuring actions, we reclassify certain assets as held for sale. Assets are reclassified at the lower of their carrying value and estimated fair value less costs of disposal at the time of reclassification. At December 31, 2020, we had no assets classified as held for sale (December 31, 2019 — $0.7, consisting of equipment in Europe). We sold our Toronto real property (previously classified as held for sale) in March 2019, and we reclassified the land and building we own in Europe (totaling $12.9) to property, plant and equipment as of December 31, 2019. See note 7.

X
- Definition Non-current Assets Held For Sale And Discontinued Operations [Abstract] + References No definition available. + Details
Name: | cls_NoncurrentAssetsHeldForSaleAndDiscontinuedOperationsAbstract
Namespace Prefix: | cls_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of non-current assets or disposal groups classified as held for sale. [Refer: Non-current assets or disposal groups classified as held for sale] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_10_e&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration