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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following table outlines changes to the carrying amount of goodwill (in thousands):
| Goodwill
Balance at September 30, 2022 | $ | 365,147 |
Acquired goodwill (1) | 56,683 |
Translation adjustments | 4,477 |
Balance at June 30, 2023 | $ | 426,307 |
(1) Refer to Note 16 "Business Combination" for additional information related to our acquired goodwill.
Schedule of Finite-Lived Intangible Assets | Intangible assets subject to amortization consisted of the following (in thousands):
| June 30, 2023 |  | September 30, 2022
Intangible Assets, Net | Cost | Accumulated Amortization | Net |  | Cost | Accumulated Amortization | Net
Acquired patents and technology | $ | 357,032 |  | $ | (271,322) |  | $ | 85,710 |  |  | $ | 355,622 |  | $ | (253,080) |  | $ | 102,542 |
Customer relationships | 152,190 |  | (60,617) |  | 91,573 |  |  | 66,142 |  | (56,572) |  | 9,570 |
Other intangible assets | 23,032 |  | (22,981) |  | 51 |  |  | 22,973 |  | (22,820) |  | 153 |
Total | $ | 532,254 |  | $ | (354,920) |  | $ | 177,334 |  |  | $ | 444,737 |  | $ | (332,472) |  | $ | 112,265 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | As of June 30, 2023, expected amortization expense of our intangible assets in future fiscal periods was as follows (in thousands):
Fiscal Year | Amortization Expense
Remainder of 2023 | $ | 8,032 |
2024 | 31,305 |
2025 | 16,348 |
2026 | 15,456 |
2027 | 14,773 |
Thereafter | 91,420 |
Total | $ | 177,334 |

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