Investments and fair value measurements - Summary of the Changes in the Fair Value of Level 3 Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Preferred Stock
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Unrealized loss on strategic investments	$ (2,896)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	10,000	$ 0	$ 0
Purchases of strategic investments	5,000	10,000
Ending balance	12,104	10,000	0
Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	0	160	108
Unrealized loss on strategic investments			52
Exercise of redeemable convertible preferred stock warrants		(160)
Ending balance	0	0	160
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Purchases of strategic investments	0	0
Stock Appreciation Rights
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	818	268	36
Vesting and remeasurement of SARs, net	(294)	550	232
Amount reclassified from liability to equity upon exchange	(62)
Unrealized loss on strategic investments			0
Ending balance	462	818	$ 268
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Purchases of strategic investments	$ 0	$ 0