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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2022
Notes To Financial Statements [Abstract] |
Summary of Goodwill by Reportable Segment | The change in the carrying value of goodwill for the nine months ended September 30, 2022, categorized by reportable segments, is as follows (in thousands):
| Clear Aligner |  | Systems and Services |  | Total
Balance as of December 31, 2021 | $ | 112,208 |  |  | $ | 306,339 |  |  | $ | 418,547 |
Additions from acquisition | — |  |  | 8,729 |  |  | 8,729 |
Foreign currency translation adjustments | (6,694) |  |  | (42,966) |  |  | (49,660) |
Balance as of September 30, 2022 | $ | 105,514 |  |  | $ | 272,102 |  |  | $ | 377,616 |
Schedule of Amortized Intangible Assets | Acquired intangible long-lived assets were as follows, excluding intangibles that were fully amortized (in thousands):
| Weighted Average Amortization Period (in years) |  | Gross Carrying Amount as of September 30, 2022 |  | Accumulated Amortization |  | Accumulated Impairment Loss |  | Net Carrying Value as of September 30, 2022
Existing technology | 10 |  | $ | 112,051 |  |  | $ | (30,589) |  |  | $ | (4,328) |  |  | $ | 77,134 |
Customer relationships | 10 |  | 21,500 |  |  | (5,375) |  |  | — |  |  | 16,125 |
Trademarks and tradenames | 10 |  | 17,200 |  |  | (5,925) |  |  | (4,179) |  |  | 7,096 |
Patents | 8 |  | 6,511 |  |  | (5,090) |  |  | — |  |  | 1,421 |
|  |  | $ | 157,262 |  |  | $ | (46,979) |  |  | $ | (8,507) |  |  | 101,776 |
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | (10,065) |
Total intangible assets, net 1 |  |  |  |  |  |  |  |  | $ | 91,711 |
1 Also includes $33.5 million of fully amortized intangible assets related to customer relationships.
| Weighted Average Amortization Period (in years) |  | Gross Carrying Amount as of December 31, 2021 |  | Accumulated Amortization |  | Accumulated Impairment Loss |  | Net Carrying Value as of December 31, 2021
Existing technology | 10 |  | $ | 104,531 |  |  | $ | (22,495) |  |  | $ | (4,328) |  |  | $ | 77,708 |
Customer relationships | 11 |  | 55,000 |  |  | (25,891) |  |  | (10,751) |  |  | 18,358 |
Trademarks and tradenames | 10 |  | 17,200 |  |  | (4,547) |  |  | (4,179) |  |  | 8,474 |
Patents | 8 |  | 6,511 |  |  | (4,495) |  |  | — |  |  | 2,016 |
|  |  | $ | 183,242 |  |  | $ | (57,428) |  |  | $ | (19,258) |  |  | 106,556 |
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | 3,153 |
Total intangible assets, net |  |  |  |  |  |  |  |  | $ | 109,709 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | The total estimated annual future amortization expense for these acquired intangible assets as of September 30, 2022 is as follows (in thousands):
Fiscal Year Ending December 31, |  | Amortization
Remainder of 2022 |  | $ | 4,144 |
2023 |  | 16,501 |
2024 |  | 15,335 |
2025 |  | 14,959 |
2026 |  | 14,353 |
Thereafter |  | 36,484 |
Total |  | $ | 101,776 |

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