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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 55
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Fair value of financial instruments (Additional Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
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