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v3.22.1

Share-based payment (Narrative) (Details) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Nov. 30, 2019 USD ($) item | Dec. 31, 2020 shares | Dec. 31, 2019 $ / shares shares | Dec. 31, 2018 | Dec. 31, 2021 shares | Jun. 30, 2019 shares
Disclosure Of Share-based Payment [Line Items] |  |  |  |  |  |
Number of instruments granted in share-based payment arrangement | $ | 800,000 |  |  |  |  |
Number of shares issued |  | 61,029,772 |  |  | 60,238,026 |
Description of maximum term of options granted for share-based payment arrangement |  |  |  | 10-year |  |
Year of Issuance 2018 [Member] |  |  |  |  |  |
Disclosure Of Share-based Payment [Line Items] |  |  |  |  |  |
Number of shares issued |  |  |  |  |  | 131,330
Year of issuance 2016 [Member] |  |  |  |  |  |
Disclosure Of Share-based Payment [Line Items] |  |  |  |  |  |
Number of shares issued |  |  |  |  |  | 1,353,517
Value Creation Plan [Member] |  |  |  |  |  |
Disclosure Of Share-based Payment [Line Items] |  |  |  |  |  |
Maximum Awards Payable in Variable Number of Shares in Share-based Payment Arrangement |  |  | 3,024,172 |  |  |
Stock market price | $ / shares |  |  | $ 19.42 |  |  |
Share based compensation arrangement shares vesting percentage |  | 50.00% | 50.00% |  |  |
Value Creation Plan [Member] | Director |  |  |  |  |  |
Disclosure Of Share-based Payment [Line Items] |  |  |  |  |  |
Percentage of shares under share based compensation |  |  | 20.00% |  |  |
Minimum |  |  |  |  |  |
Disclosure Of Share-based Payment [Line Items] |  |  |  |  |  |
Number of salaries | item | 3 |  |  |  |  |
Maximum |  |  |  |  |  |
Disclosure Of Share-based Payment [Line Items] |  |  |  |  |  |
Number of salaries | item | 6 |  |  |  |  |
Number of shares issued |  |  |  |  | 5,000,000 |

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