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Intangible Assets, net | 12 Months Ended
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Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets, net | Intangible Assets, net Intangible assets, net, consisted of the following (in thousands):
|  | As of December 31, 2021
|  | Remaining Weighted average useful life (in years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships |  | 5.7 |  | $ | 19,163 |  | $ | 8,470 |  | $ | 10,693
Developed technology |  | 4.8 |  | 10,605 |  | 5,487 |  | 5,118
Trade names |  | 2.3 |  | 520 |  | 300 |  | 220
Total intangible assets |  |  |  | $ | 30,288 |  | $ | 14,257 |  | $ | 16,031
|  | As of December 31, 2020
|  | Remaining Weighted average useful life (in years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships |  | 2.5 |  | $ | 8,626 |  | $ | 7,949 |  | $ | 677
Developed technology |  | 0.2 |  | 5,216 |  | 5,085 |  | 131
Trade names |  | 0.2 |  | 288 |  | 281 |  | 7
Total intangible assets |  |  |  | $ | 14,130 |  | $ | 13,315 |  | $ | 815
As discussed in Note 4, we acquired Earth Class Mail in November 2021 and Pure in October 2020. In 2021, 2020 and 2019, we recorded amortization expense of $1.0 million, $2.8 million and $4.3 million, respectively. At December 31, 2021, estimated future intangible assets amortization expense were as follows (in thousands):
For Years Ending December 31, |
2022 | $ | 3,162
2023 | 3,006
2024 | 2,869
2025 | 2,851
2026 | 2,670
Thereafter | $ | 1,473
Total future amortization expense | $ | 16,031

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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