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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following table summarizes changes in the balance of goodwill during the nine months ended June 30, 2021 (amounts shown in thousands):
Balance at September 30, 2020 | $ | 35,669 |
Acquisition of ID R&D | 30,866 |
Foreign currency effect on goodwill | 515 |
Balance at June 30, 2021 | $ | 67,050 |
Schedule of Intangible Assets | Intangible assets as of June 30, 2021 and September 30, 2020, respectively, are summarized as follows (amounts shown in thousands, except for years):
June 30, 2021: | Weighted Average Amortization Period |  | Cost |  | Accumulated Amortization |  | Net
Completed technologies | 6.6 years |  | $ | 31,621 |  |  | $ | 11,860 |  |  | $ | 19,761 |
Customer relationships | 4.6 years |  | 20,168 |  |  | 11,825 |  |  | 8,343 |
Trade names | 4.7 years |  | 988 |  |  | 535 |  |  | 453 |
Total intangible assets |  |  | $ | 52,777 |  |  | $ | 24,220 |  |  | $ | 28,557 |
September 30, 2020: | Weighted Average Amortization Period |  | Cost |  | Accumulated Amortization |  | Net
Completed technologies | 6.4 years |  | $ | 20,341 |  |  | $ | 9,416 |  |  | $ | 10,925 |
Customer relationships | 4.8 years |  | 17,628 |  |  | 9,390 |  |  | 8,238 |
Trade names | 4.5 years |  | 618 |  |  | 492 |  |  | 126 |
Total intangible assets |  |  | $ | 38,587 |  |  | $ | 19,298 |  |  | $ | 19,289 |
Schedule of Estimated Future Amortization Expense | The estimated future amortization expense related to intangible assets for each of the five succeeding fiscal years is expected to be as follows (amounts shown in thousands):
| Estimated Future Amortization Expense
2021—remaining | $ | 2,142 |
2022 | 8,566 |
2023 | 6,493 |
2024 | 4,126 |
2025 | 2,902 |
Thereafter | 4,328 |
Total | $ | 28,557 |

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