XML 124 R104.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Equity - Share capital (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended
--- | --- | ---
Feb. 23, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of classes of share capital [line items] |  |  |
Net offering proceeds |  |  | $ 694,608
Bought Deal Offering |  |  |
Disclosure of classes of share capital [line items] |  |  |
Shares Transacted (in shares) | 14,870,000 | 14,870,000 | 20,909,300
Average Share Price (usd per share) | $ 37.00 | $ 37.00 | $ 19.25
Gross offering proceeds | $ 550,190 | $ 550,190 | $ 402,504
Less: Underwriting expenses |  | (22,186) |
Less: Other financing expenses |  | (713) |
Net offering proceeds | $ 527,291 | $ 527,291 | $ 385,782
ATM Programs |  |  |
Disclosure of classes of share capital [line items] |  |  |
Shares Transacted (in shares) |  |  | 24,648,248
Average Share Price (usd per share) |  |  | $ 12.85
Gross offering proceeds |  |  | $ 316,673
Net offering proceeds |  |  | $ 308,826

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

X
- Definition Payments for other share issue costs + References No definition available. + Details
Name: | bldp_PaymentsForOtherShareIssueCosts
Namespace Prefix: | bldp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Proceeds From Issuing Shares, Gross + References No definition available. + Details
Name: | bldp_ProceedsFromIssuingSharesGross
Namespace Prefix: | bldp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Sale Of Stock, Price Per Share1 + References No definition available. + Details
Name: | bldp_SaleOfStockPricePerShare1
Namespace Prefix: | bldp_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- 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

X
- Definition The cash outflow for share issue costs. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 17 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_PaymentsForShareIssueCosts
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow from issuing shares. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 17 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ProceedsFromIssuingShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | bldp_SaleOfStockAxis=bldp_BoughtDealOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bldp_SaleOfStockAxis=bldp_ATMProgramsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |