Segment and geographic information - Financial Information by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Revenue	$ 158,432	$ 129,563	$ 463,767	$ 380,206
Segment cost of revenue	69,080	57,986	201,330	171,902
Gross profit	89,352	71,577	262,437	208,304
Reconciliation of segment gross profit to gross profit
Amortization of capitalized software	3,300	2,500	9,000	6,700
Amortization of intangible assets	1,100	400	3,200	400
Depreciation	1,100	1,100	3,400	3,300
Stock-based compensation	24,969	7,220	53,043	23,704
Gross profit	89,352	71,577	262,437	208,304
Operating Segments
Segment Reporting Information [Line Items]
Revenue	158,432	129,563	463,767	380,206
Segment cost of revenue	63,349	54,672	186,202	163,448
Gross profit	95,083	74,891	277,565	216,758
Reconciliation of segment gross profit to gross profit
Gross profit	95,083	74,891	277,565	216,758
Segment Reconciling Items
Segment Reporting Information [Line Items]
Gross profit	5,731	3,314	15,128	8,454
Reconciliation of segment gross profit to gross profit
Amortization of capitalized software	3,261	2,501	9,000	6,689
Amortization of intangible assets	725	293	2,175	293
Depreciation	134	170	513	585
Stock-based compensation	1,611	350	3,440	887
Gross profit	5,731	3,314	15,128	8,454
Consumer | Operating Segments
Segment Reporting Information [Line Items]
Revenue	74,567	79,198	240,364	251,035
Segment cost of revenue	35,901	37,243	111,909	118,606
Gross profit	38,666	41,955	128,455	132,429
Reconciliation of segment gross profit to gross profit
Gross profit	38,666	41,955	128,455	132,429
Enterprise | Operating Segments
Segment Reporting Information [Line Items]
Revenue	83,865	50,365	223,403	129,171
Segment cost of revenue	27,448	17,429	74,293	44,842
Gross profit	56,417	32,936	149,110	84,329
Reconciliation of segment gross profit to gross profit
Gross profit	$ 56,417	$ 32,936	$ 149,110	$ 84,329