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Equity and dividends (Narrative) (Details) - USD ($)			1 Months Ended	3 Months Ended		12 Months Ended
Equity and dividends (Narrative) (Details) - USD ($)	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