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Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Amortization of intangible assets from acquisitions | $ 531 | $ 1,149 | $ 1,593 | $ 3,708
Related party support services fee income net of related expenses | 1,797 | 2,240 | 5,387 | 5,164
Service Cost |  |  |  |
Amortization of intangible assets from acquisitions | 117 | 610 | 351 | 1,885
Related party support services fee income net of related expenses | 772 | 825 | 2,208 | 2,151
Sales and Marketing |  |  |  |
Amortization of intangible assets from acquisitions | 414 | 539 | 1,242 | 1,711
Related party support services fee income net of related expenses | 200 | 281 | 572 | 447
General and Administrative |  |  |  |
Amortization of intangible assets from acquisitions |  |  |  | 112
Related party support services fee income net of related expenses | 304 | 584 | 1,168 | 1,065
Product development |  |  |  |
Related party support services fee income net of related expenses | $ 521 | $ 550 | $ 1,439 | $ 1,501

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