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Summary of significant accounting policies - Impairment Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Impairment of long-lived assets	$ 1,171	$ 1,573	$ 6,636
Impairment of goodwill	$ 0	$ 0	$ 1,085

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- References

No definition available.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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