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Equity and dividends (Narrative) (Details) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jun. 17, 2022 | May 27, 2022 | Apr. 30, 2022 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Dividends Payable [Line Items] |  |  |  |  |  |
Preferred shares issued |  |  |  | 0 |  |
Shares forfeited |  |  |  |  | 55,510 |
Stock repurchased during period, shares |  |  |  | 0 | 0 |
Gain (Loss) from intra-entity foreign currency transactions |  |  |  | $ (884,000) | $ 3,654,000 | $ 3,654,000
Shares issued for business combination [Member] |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |
Unrecognized share based continuing employment costs |  |  |  | $ 8,600,026 |  | $ 14,576,000
Unrecognized share based continuing employment costs, weighted average period for recognition |  |  |  | 1 year 6 months |  |
Subsequent Event [Member] |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |
Dividends declared (USD per share) |  |  | $ 0.25 |  |  |
Dividends payable date | Jun. 17, 2022 |  |  |  |  |
Dividends, date of record |  | May 27, 2022 |  |  |  |
Rouse Services LLC [Member] |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |
Shares forfeited |  |  |  |  | 55,510 |

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