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Income taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Provision for income tax	$ 2,410	$ 0	$ 2,410	$ 0
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards					$ 374,400
Operating loss carryforwards limitation percentage					80.00%

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- Definition

The limitations on the use of all operating loss carryforwards available to reduce future taxable income, as a percentage.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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