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GOODWILL AND INTANGIBLE ASSETS (Tables) | 9 Months Ended
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Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Changes in Goodwill | The following is a summary of changes in goodwill (in thousands):
Balance at September 30, 2018 | $ | 64,777 |
Additions (Note 1) | 3,125 |
Balance at June 30, 2019 | $ | 67,902 |
Schedule of Finite-Lived Intangible Assets | Intangible assets arising from business acquisitions consisted of the following:
|  |  | June 30, 2019 |  | September 30, 2018
(in thousands) | Estimated Useful Lives |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net
Finite-lived intangible asset: |  |  |  |  |  |  |  |  |  |  |  |  |
Developed technology | 15 years |  | $ | 70,200 |  |  | $ | 9,089 |  |  | $ | 61,111 |  |  | $ | 70,000 |  |  | $ | 5,589 |  |  | $ | 64,411 |
Trade name | 20 years |  | 5,700 |  |  | 451 |  |  | 5,249 |  |  | 5,700 |  |  | 237 |  |  | 5,463 |
Customer relationships | 5 years |  | 4,000 |  |  | 1,267 |  |  | 2,733 |  |  | 4,000 |  |  | 667 |  |  | 3,333 |
|  |  | $ | 79,900 |  |  | $ | 10,807 |  |  | $ | 69,093 |  |  | $ | 79,700 |  |  | $ | 6,493 |  |  | $ | 73,207 |

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