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Income taxes - Schedule of activities related to unrecognized tax benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Tax Uncertainties [Abstract]
Opening Balance at January 1	$ 25,651	$ 34,300
Increase related to prior year tax positions, including recorded in acquisition accounting	2,869	2,992
Decrease related to prior year tax positions	(1,802)	(455)
Decrease related to prior year tax positions due to lapse of applicable statute of limitation	(1,313)	(455)
Increase related to current year tax positions, including recorded in acquisition accounting	1,426	1,385
Decrease related to settlements with taxing authorities	(4)	(11,170)
Effect of exchange rate changes	(1,397)	(946)
Closing Balance at December 31	$ 25,430	$ 25,651

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- Definition

Change in unrecognized tax benefits due to movement in foreign exchange rates.

+ References

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 10B
-URI https://asc.fasb.org/extlink&oid=123427490&loc=SL37586934-109318

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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-Name Accounting Standards Codification
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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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-Paragraph 15A
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-URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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