| Summary of Estimated Useful Lives of Intangible Assets |
The estimated useful lives of intangible assets are generally as follows: | | | | | | | | | | Intangible Asset | | Estimated Useful
Life | | Domain names | | 5 Years | | Trademarks | | 3 Years | | Acquired developed technology | | 3 to 7 Years | | Customer relationships | | 2 to 8 Years | | Patents | | 4 to 14 Years |
Intangible assets consisted of the following: | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2022 | | Weighted-
Average
Remaining
Useful Life -
Years | | Gross
Carrying
Amount | | Accumulated
Amortization | | Net | | | | | | | | | | (in thousands, except years) | | Domain names | 4.0 | | $ | 954 | | | $ | (690) | | | $ | 264 | | | Trademarks | 1.2 | | 800 | | | (478) | | | 322 | | | Technology | 3.1 | | 340,375 | | | (178,427) | | | 161,948 | | | Customer relationships | 5.7 | | 21,000 | | | (6,641) | | | 14,359 | | | Patents | 9.1 | | 39,373 | | | (14,912) | | | 24,461 | | | Other | 1.0 | | 6,000 | | | (2,874) | | | 3,126 | | | | | $ | 408,502 | | | $ | (204,022) | | | $ | 204,480 | |
| | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2021 | | Weighted-
Average
Remaining
Useful Life -
Years | | Gross
Carrying
Amount | | Accumulated
Amortization | | Net | | | | | | | | | | (in thousands, except years) | | Domain names | 4.6 | | $ | 967 | | | $ | (365) | | | $ | 602 | | | Trademarks | 4.3 | | 21,384 | | | (2,613) | | | 18,771 | | | Technology | 3.6 | | 343,800 | | | (142,588) | | | 201,212 | | | Customer relationships | 5.1 | | 53,709 | | | (6,332) | | | 47,377 | | | Patents | 4.0 | | 21,195 | | | (11,503) | | | 9,692 | | | | | $ | 441,055 | | | $ | (163,401) | | | $ | 277,654 | |
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