Stockholders' equity - Narrative (Details) $ / shares in Units, $ in Thousands			3 Months Ended		12 Months Ended
	Jan. 01, 2023 shares	Aug. 06, 2022 USD ($) shares	Dec. 31, 2023 USD ($) grant $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) vote period grant $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Jul. 11, 2022 $ / shares	Oct. 29, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, shares authorized (in shares)			50,000,000	50,000,000	50,000,000	50,000,000
Preferred stock, par value (in dollars per share) | $ / shares			$ 0.00001	$ 0.00001	$ 0.00001	$ 0.00001
Number of votes per common stock | vote					1
Share-based payment arrangement, equity exchange participation rate			97.00%		97.00%
Stock-based compensation in capitalized costs | $		$ 45,700			$ 9,175	$ 5,911	$ 2,571
Aggregate intrinsic value of options exercised in period | $					45,600	13,700	59,700
Aggregate intrinsic value exercised | $					$ 300	$ 0	0
Total shares of common stock reserved (in shares)			27,803,828	31,255,576	27,803,828	31,255,576
Stock-based compensation | $					$ 96,046	$ 81,293	34,680
Stock-based compensation capitalized as a software | $					$ 9,000	$ 5,800	2,500
Tender Offer to Sell Common Stock to an Investor
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation | $							$ 1,600
Initial public offering, price per share (in dollars per share) | $ / shares							$ 23.75
Tender Offer To Sell Vested Stock Options And Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares sold in initial public offering (in shares)							236,086
Other Equity Transaction
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation | $							$ 4,000
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					4 years
Contractual term (in years)					10 years
Stock options outstanding (in shares)			4,621,021	10,333,771	4,621,021	10,333,771
Stock Appreciation Rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					4 years
Contractual term (in years)					10 years
Granted (in shares)					0	0
Weighted average grant date fair value (in dollars per share) | $ / shares							$ 22.47
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, conversion basis								1
Share-based payment arrangement, shares exchanged		6,958,544
Granted (in shares)					8,159,808
Granted (in USD per share) | $ / shares					$ 9.86	$ 13.79	$ 27.64
Fair value of shares vested | $					$ 68,400		$ 50,700
Unrecognized compensation costs, excluding options | $			$ 192,400		$ 192,400
Unrecognized compensation costs, period for recognition (in years)					2 years 8 months 12 days
Restricted stock issued for business combination, grant date fair value (in dollars per share) | $ / shares			$ 14.07	$ 17.37	$ 14.07	17.37
Restricted Stock Units (RSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting date		2 years
Award vesting period (in years)					3 years
Restricted Stock Units (RSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting date		3 years
Award vesting period (in years)					4 years
Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)					645,833
Number of shares right to receive (in shares)					1
Award vesting rights, percentage					75.00%
Corporate performance metric attainment percentage			0.70		0.70
Granted (in USD per share) | $ / shares					$ 8.89
Unrecognized compensation costs, excluding options | $			$ 2,000		$ 2,000
Unrecognized compensation costs, period for recognition (in years)					1 year 4 months 24 days
Contractual term (in years)					10 years
Number of grants | grant			1		1
Restricted stock issued for business combination, grant date fair value (in dollars per share) | $ / shares			$ 8.89	$ 0	$ 8.89	$ 0
Performance-Based Awards | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage					0.00%
Performance-Based Awards | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage					150.00%
Performance-Based Awards | Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage					25.00%
Contingently issuable shares under ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs, excluding options | $			$ 8,100		$ 8,100
Unrecognized compensation costs, period for recognition (in years)					1 year 6 months
Total shares of common stock reserved (in shares)	1,450,137								2,800,000
Minimum annual increase in shares reserved for issuance					1.00%
Percent of outstanding shares					300.00%
ESPP discount percentage from market price, beginning of purchase period					15.00%
Share-based compensation arrangement by share-based payment award, consecutive offering period					24 months
Share-based compensation arrangement by share-based payment award, number of purchase periods | period					4
Share-based compensation arrangement by share-based payment award, purchase period					6 months
ESPP purchase price of common stock, percent of market price					85.00%
Shares issued (in shares)					1,029,344
Incremental compensation cost | $					$ 5,900	$ 3,400
Restricted stock | CorpU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation | $			$ 2,100	$ 2,100
Restricted stock issued for business combination (in shares)							61,300
Restricted stock issued for business combination, grant date fair value (in dollars per share) | $ / shares							$ 34.14
Share-based Payment Arrangement, Option and Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, option and non-option equity instruments, exercise price range, outstanding, weighted average exercise price | $ / shares								$ 11.13
2021 Stock incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for future issuance (in shares)			13,800,000		13,800,000
Annual percentage increase, term					0.05
Number of shares reserved for future issuance increased (in shares)	7,250,689
Weighted average grant date fair value, options (in USD per share) | $ / shares							$ 16.01
Stock options outstanding (in shares)			4,571,021	10,283,771	4,571,021	10,283,771
Amended and Restated 2010 Equity Incentive Plan | Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options outstanding (in shares)			50,000	50,000	50,000	50,000