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Convertible debt - Narrative (Details) - VRB Convertible Bond $ in Millions	Jul. 08, 2021 USD ($)
Debt Instrument [Line Items]
Proceeds from issuance of convertible notes	$ 24.0
Debt term (in years)	5 years
Interest rate on convertible debt (in percent)	8.00%
Maximum
Debt Instrument [Line Items]
Valuations cap price	$ 158.0

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- Definition

Convertible Debt, Valuation Price

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