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Intangible Assets (Tables) | 12 Months Ended
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Sep. 30, 2020
Goodwill And Intangible Assets Disclosure [Abstract] |
Information About Intangible Assets | Information about the intangible assets of the Company at September 30, 2020 and 2019, were as follows (in thousands):
| September 30, |  |  | September 30, |
| 2020 |  |  | 2019 |
Customer relationship | $ | 43,800 |  |  | $ | 43,800 |
Accumulated amortization |  | (35,768 | ) |  |  | (34,268 | )
| $ | 8,032 |  |  | $ | 9,532 |

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