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Fair value of financial instruments (Additional Information) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Offsetting Liabilities [Line Items]
Cash collateral	$ 0		$ 0		$ 0
Long-Lived Assets [Member]
Offsetting Liabilities [Line Items]
Impairment	0	$ 0	0	$ 0
Equity investments [Member]
Offsetting Liabilities [Line Items]
Impairment	$ 0	$ 0	$ 0	$ 0