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Goodwill and Other Identifiable Intangible Assets, Net (Tables) | 9 Months Ended
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Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Amortizable Intangible Assets | Amortizable intangible assets were (in thousands):
| June 30, 2020 |  |  |  |  |  | September 30, 2019 |  |  |  |
| Gross carrying amount |  | Accum. amort. |  | Net |  | Gross carrying amount |  | Accum. amort. |  | Net
Purchased and core technology | $ | 75,728 |  |  | $ | (54,030) |  |  | $ | 21,698 |  |  | $ | 57,699 |  |  | $ | (50,986) |  |  | $ | 6,713 |
License agreements | 112 |  |  | (105) |  |  | 7 |  |  | 102 |  |  | (74) |  |  | 28 |
Patents and trademarks | 22,748 |  |  | (13,111) |  |  | 9,637 |  |  | 14,577 |  |  | (11,970) |  |  | 2,607 |
Customer relationships | 125,300 |  |  | (31,593) |  |  | 93,707 |  |  | 46,315 |  |  | (25,266) |  |  | 21,049 |
Non-compete agreements | 600 |  |  | (420) |  |  | 180 |  |  | 600 |  |  | (330) |  |  | 270 |
Order backlog | 1,800 |  |  | (1,800) |  |  | — |  |  | 1,800 |  |  | (1,800) |  |  | — |
Total | $ | 226,288 |  |  | $ | (101,059) |  |  | $ | 125,229 |  |  | $ | 121,093 |  |  | $ | (90,426) |  |  | $ | 30,667 |
Schedule of Estimated Future Amortization Expense Related to Intangible Assets | Estimated amortization expense related to intangible assets for the remainder of fiscal 2020 and the five succeeding fiscal years is (in thousands):
2020 (three months) | $ | 4,065 |
2021 | $ | 15,555 |
2022 | $ | 14,711 |
2023 | $ | 12,518 |
2024 | $ | 11,815 |
2025 | $ | 8,358 |
Schedule of Changes in Carrying Amount of Goodwill | The changes in the carrying amount of goodwill by reportable segments are (in thousands):
| Nine months ended June 30, |  |  |  |
| IoT Products and Services |  | IoT Solutions |  | Total
Balance on September 30, 2019 | $ | 103,519 |  |  | $ | 49,903 |  |  | $ | 153,422 |
Acquisitions | 53,606 |  |  | — |  |  | 53,606 |
Foreign currency translation adjustment | 20 |  |  | (355) |  |  | (335) |
Balance at June 30, 2020 | $ | 157,145 |  |  | $ | 49,548 |  |  | $ | 206,693 |

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