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Income taxes - Schedule of foreign tax credit carry-forward expiry period (Detail) - Foreign tax authority $ in Thousands	Dec. 31, 2021 USD ($)
Tax Credit Carryforward [Line Items]
Foreign tax credit carryforward amount	$ 15,724
2028
Tax Credit Carryforward [Line Items]
Foreign tax credit carryforward amount	6,378
2029
Tax Credit Carryforward [Line Items]
Foreign tax credit carryforward amount	2,554
2030
Tax Credit Carryforward [Line Items]
Foreign tax credit carryforward amount	2,665
2031
Tax Credit Carryforward [Line Items]
Foreign tax credit carryforward amount	3,803
2035
Tax Credit Carryforward [Line Items]
Foreign tax credit carryforward amount	121
2041
Tax Credit Carryforward [Line Items]
Foreign tax credit carryforward amount	$ 203

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- Definition

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319

+ Details

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- Definition

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+ References

No definition available.

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