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Segment and geographic information - Financial Information by Reportable Segment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |  |
Revenue | $ 515,657 | $ 429,899 | $ 276,327
Segment cost of revenue | 236,024 | 209,253 | 143,510
Gross profit | 279,633 | 220,646 | 132,817
Reconciliation of segment gross profit to gross profit |  |  |
Amortization of capitalized software | 9,300 | 6,900 | 4,900
Amortization of intangible assets | 1,500 |  |
Depreciation | 4,500 | 4,200 | 3,800
Stock-based compensation | 34,680 | 31,618 | 8,963
Gross profit | 279,633 | 220,646 | 132,817
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 515,657 | 429,899 | 276,327
Segment cost of revenue | 223,326 | 201,323 | 137,575
Gross profit | 292,331 | 228,576 | 138,752
Reconciliation of segment gross profit to gross profit |  |  |
Gross profit | 292,331 | 228,576 | 138,752
Segment Reconciling Items |  |  |
Segment Reporting Information [Line Items] |  |  |
Gross profit | 12,698 | 7,930 | 5,935
Reconciliation of segment gross profit to gross profit |  |  |
Amortization of capitalized software | 9,293 | 6,894 | 4,909
Amortization of intangible assets | 1,022 | 0 | 0
Depreciation | 760 | 618 | 727
Stock-based compensation | 1,623 | 418 | 299
Gross profit | 12,698 | 7,930 | 5,935
Consumer | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 328,703 | 326,454 | 225,500
Segment cost of revenue | 159,342 | 165,804 | 118,669
Gross profit | 169,361 | 160,650 | 106,831
Reconciliation of segment gross profit to gross profit |  |  |
Gross profit | 169,361 | 160,650 | 106,831
Enterprise | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 186,954 | 103,445 | 50,827
Segment cost of revenue | 63,984 | 35,519 | 18,906
Gross profit | 122,970 | 67,926 | 31,921
Reconciliation of segment gross profit to gross profit |  |  |
Gross profit | $ 122,970 | $ 67,926 | $ 31,921

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