XML 29 R9.htm IDEA: XBRL DOCUMENT v3.22.0.1

Changes in accounting policies	12 Months Ended
	Dec. 31, 2021
Corporate Information And Statement Of IFRS Compliance [Abstract]
Changes in accounting policies	Changes in accounting policies: The Corporation has consistently applied the accounting policies set out in note 4 to all periods presented in these consolidated financial statements. A number of new standards and interpretations became effective from January 1, 2021 however, they did not have a material impact on the Corporation's consolidated financial statements.

X

- Definition

Corporate Information And Statement Of IFRS Compliance [Abstract]

+ References

No definition available.

+ Details

Name:	bldp_CorporateInformationAndStatementOfIFRSComplianceAbstract
Namespace Prefix:	bldp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The entire disclosure for changes in accounting policies, accounting estimates and errors.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 8
-IssueDate 2021-01-01
-Section Accounting policies
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=8&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS08_g7-31_TI
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory
Namespace Prefix:	ifrs-full_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration