Stockholders' equity - Narrative (Details) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended
	Jan. 01, 2024 shares	Feb. 29, 2024 shares	Mar. 31, 2024 USD ($) vote $ / shares shares	Mar. 31, 2023 USD ($) shares	Feb. 14, 2024 USD ($)	Dec. 31, 2023 $ / shares 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
Preferred stock, par value (in dollars per share) | $ / shares			$ 0.00001			$ 0.00001
Preferred stock, shares outstanding (in shares)			0			0
Preferred stock, shares issued (in shares)			0			0
Number of votes per common stock | vote			1
Share repurchase program, shares authorized | $					$ 100,000
Repurchases of common stock (in shares)			4,962,145
Repurchases of common stock | $			$ 55,511
Total shares of common stock reserved (in shares)			35,846,303			27,803,828
Stock-based compensation capitalized as a software | $			$ 2,300	$ 2,300
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			1,422,785
Unrecognized compensation costs, excluding options | $			$ 180,800
Unrecognized compensation costs, period for recognition (in years)			2 years 7 months 6 days
Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares right to receive (in shares)			1
Granted (in shares)		450,170	553,568	645,833
Award vesting rights, percentage		75.00%	75.00%
Corporate performance metric attainment percentage			0.80
Authorized attainment percentage of shares issued		70.00%
Unrecognized compensation costs, excluding options | $			$ 6,300
Unrecognized compensation costs, period for recognition (in years)			2 years
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%
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)			3,796,330			4,621,021
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercised (in shares)			1,558
Exercised (in dollars per share) | $ / shares			$ 6.58
SARs outstanding (in shares)			3,000
Contingently issuable shares under ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs, excluding options | $			$ 6,400
Unrecognized compensation costs, period for recognition (in years)			1 year 2 months 12 days
Total shares of common stock reserved (in shares)	1,571,663						2,800,000
Minimum annual increase in shares reserved for issuance			1.00%
Percent of outstanding shares			300.00%
Minimum | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)			3 years
Minimum | Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage			0.00%
Maximum | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)			4 years
Maximum | Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage			150.00%
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
Annual percentage increase, term			0.05
Number of shares reserved for future issuance increased (in shares)	7,858,318
Stock options outstanding (in shares)			3,746,330			4,571,021
Exercisable, awards outstanding (in shares)			3,718,691
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
Exercisable, awards outstanding (in shares)			29,166