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Goodwill and Intangible Assets (Tables) | 3 Months Ended
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Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following table summarizes changes in the balance of goodwill during the three months ended December 31, 2020 (amounts shown in thousands):
Balance at September 30, 2020 | $ | 35,669 |
Foreign currency effect on goodwill | 1,654 |
Balance at December 31, 2020 | $ | 37,323 |
Schedule of Intangible Assets | Intangible assets as of December 31, 2020 and September 30, 2020, respectively, are summarized as follows (amounts shown in thousands, except for years):
December 31, 2020: | Weighted Average Amortization Period |  | Cost |  | Accumulated Amortization |  | Net
Completed technologies | 6.4 years |  | $ | 20,341 |  |  | $ | 9,736 |  |  | $ | 10,605 |
Customer relationships | 4.8 years |  | 17,628 |  |  | 9,928 |  |  | 7,700 |
Trade names | 4.5 years |  | 618 |  |  | 500 |  |  | 118 |
Total intangible assets |  |  | $ | 38,587 |  |  | $ | 20,164 |  |  | $ | 18,423 |
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 | $ | 4,935 |
2022 | 6,209 |
2023 | 4,075 |
2024 | 1,947 |
2025 | 1,257 |
Total | $ | 18,423 |

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