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Equity - Narrative (Details) |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 23, 2021 USD ($) $ / shares shares | Nov. 30, 2021 USD ($) tranche $ / shares shares | Dec. 31, 2022 USD ($) shares plan $ / shares | Dec. 31, 2021 USD ($) shares | Mar. 31, 2021 USD ($) | Dec. 31, 2020 shares
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Total purchase consideration | $ |  |  | $ 1,782,000 |  |  |
Number of shares issued (in shares) |  |  | 112,451 |  |  |
Deferred finance cost | $ |  |  | $ 20,000 |  |  |
Number of tranches | tranche |  | 3 |  |  |  |
Shares issued (in shares) |  |  | 298,394,203 | 297,700,295 |  |
Compensation expense | $ |  |  | $ 9,408,000 | $ 9,669,000 |  |
Options exercised (in shares) |  |  | 304,635 | 549,281 |  |
Proceeds from exercise of options | $ |  |  | $ 916,000 | $ 2,415,000 |  |
Options granted (in shares) |  |  | 1,263,685 | 540,116 |  |
Weighted average fair value, share options granted (usd per share) | $ |  |  | $ 4.92 | $ 10.76 |  |
Options outstanding (in shares) |  |  | 4,807,620 | 4,041,567 |  | 4,149,639
Shares to be issued (in shares) |  |  | 18,844,127 | 19,540,514 |  |
Share-based compensation | $ |  |  | $ 9,408,000 | $ 9,669,000 |  |
Ballard Motive Solutions |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Total purchase consideration | $ |  | $ 39,917,000 |  |  |  |
Number of shares issued (in shares) |  | 337,353 |  |  |  |
Price per share (usd per share) | $ / shares |  | $ 18.30 |  |  |  |
Net proceeds | $ |  | $ 4,851,000 |  |  |  |
Bought Deal Offering |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Number of shares issued (in shares) | 14,870,000 |  | 14,870,000 |  |  |
Price per share (usd per share) | $ / shares | $ 37.00 |  | $ 37.00 |  |  |
Net proceeds | $ | $ 527,291,000 |  | $ 527,291,000 |  |  |
Gross proceeds from offering | $ | $ 550,190,000 |  | $ 550,190,000 |  |  |
Prospectus |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Sale of stock authorized amount | $ |  |  |  |  | $ 1,500,000,000 |
Common shares |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Options exercised (in shares) |  |  | 304,635 | 549,281 |  |
Proceeds from exercise of options | $ |  |  | $ 916,000 | $ 2,415,000 |  |
Stock Option |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Award term (years) |  |  | 7 years |  |  |
Award vesting percentage |  |  | 33.33% |  |  |
Compensation expense | $ |  |  | $ 6,101,000 | 6,093,000 |  |
Award vesting period (years) |  |  | 3 years |  |  |
DSUs |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Compensation expense | $ |  |  | $ 529,000 | $ 672,000 |  |
Number of common shares each unit is redeemable for (in shares) |  |  | 1 |  |  |
Number of shares granted (in shares) |  |  | 80,319 | 35,953 |  |
Exercised (in shares) |  |  | 126,862 | 99,761 |  |
Common shares issued (in shares) |  |  | 58,990 | 46,388 |  |
Share-based compensation | $ |  |  | $ 753,000 | $ 1,290,000 |  |
Outstanding (in shares) |  |  | 709,680 | 756,223 |  | 820,031
Granted (in shares) |  |  | 80,319 | 35,953 |  |
RSUs |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Compensation expense | $ |  |  | $ 2,778,000 | $ 2,904,000 |  |
Options exercised (in shares) |  |  | 217,832 | 156,449 |  |
Number of common shares each unit is redeemable for (in shares) |  |  | 1 |  |  |
Exercised (in shares) |  |  | 460,681 | 325,863 |  |
Share-based compensation | $ |  |  | $ 2,466,000 | $ 4,357,000 |  |
Outstanding (in shares) |  |  | 1,002,080 | 966,220 |  | 1,129,946
Number of plans | plan |  |  | 2 |  |  |
Granted (in shares) |  |  | 567,693 | 195,838 |  |

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