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Goodwill and intangible assets (Tables) | 9 Months Ended
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Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Summary of Goodwill and Intangible Assets | Goodwill and intangible assets consisted of:
|  | As of
|  |  |  | September 30, 2023 |  | December 31, 2022
(in thousands) |  | Useful life (months) |  | Gross carrying amount |  | Accumulated amortization |  | Net carrying amount |  | Gross carrying amount |  | Accumulated amortization |  | Net carrying amount
Customer relationships |  | 84 - 120 |  | $ | 43,500 |  |  | $ | (22,415) |  |  | $ | 21,085 |  |  | $ | 43,500 |  |  | $ | (17,820) |  |  | $ | 25,680 |
Non-compete agreements |  | 60 |  | 303 |  |  | (303) |  |  | — |  |  | 303 |  |  | (303) |  |  | — |
Trademarks, trade names, and domain names |  | 60 - 120 |  | 8,884 |  |  | (2,225) |  |  | 6,659 |  |  | 8,884 |  |  | (1,632) |  |  | 7,252 |
Intangible assets |  |  |  | $ | 52,687 |  |  | $ | (24,943) |  |  | $ | 27,744 |  |  | $ | 52,687 |  |  | $ | (19,755) |  |  | $ | 32,932 |
Goodwill |  | Indefinite |  | $ | 47,739 |  |  | $ | — |  |  | $ | 47,739 |  |  | $ | 47,739 |  |  | $ | — |  |  | $ | 47,739 |
Summary of Change in Goodwill and Intangible Assets | The following table presents the changes in goodwill and intangible assets:
|  | As of
|  | September 30, 2023 |  | December 31, 2022
(in thousands) |  | Goodwill |  | Intangible assets |  | Goodwill |  | Intangible assets
Beginning balance at January 1, |  | $ | 47,739 |  |  | $ | 32,932 |  |  | $ | 18,402 |  |  | $ | 12,567 |
Additions to goodwill and intangible assets |  | — |  |  | — |  |  | 29,337 |  |  | 26,120 |
Amortization |  | — |  |  | (5,188) |  |  | — |  | (5,755) |
Ending balance |  | $ | 47,739 |  |  | $ | 27,744 |  |  | $ | 47,739 |  |  | $ | 32,932 |
Summary of Future Amortization Expense on Identifiable Intangible Assets | As of September 30, 2023, future amortization expense relating to identifiable intangible assets with estimable useful lives over the next five years was as follows:
(in thousands) |  | Amortization expense
2023–Remaining Period |  | $ | 1,729 |
2024 |  | 6,428 |
2025 |  | 5,759 |
2026 |  | 5,143 |
2027 |  | 4,106 |
Thereafter |  | 4,579 |
|  | $ | 27,744 |

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