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Goodwill and Other Intangible Assets (Tables) | 9 Months Ended
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Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in Carrying Amount of Goodwill | The changes in the carrying amount of goodwill for the nine months ended June 30, 2022 are as follows (dollars in thousands):
|  | Total |
Balance as of September 30, 2021 |  | $ | 1,128,511 |
Effect of foreign currency translation |  |  | (13,955 | )
Balance as of June 30, 2022 |  | $ | 1,114,556 |
Summary of Gross Carrying Amounts and Accumulated Amortization of Intangible Assets by Major Class | The following tables summarizes the gross carrying amounts and accumulated amortization of intangible assets by major class (dollars in thousands):
|  | June 30, 2022 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Weighted Average Remaining Life (Years) |
Customer relationships |  | $ | 106,870 |  |  | $ | (94,945 | ) |  | $ | 11,925 |  |  |  | 1.8 |
Technology and patents |  |  | 89,527 |  |  |  | (88,906 | ) |  |  | 621 |  |  |  | 1.5 |
Total |  | $ | 196,397 |  |  | $ | (183,851 | ) |  | $ | 12,546 |  |  |  |
|  | September 30, 2021 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Weighted Average Remaining Life (Years) |
Customer relationships |  | $ | 110,485 |  |  | $ | (88,638 | ) |  | $ | 21,847 |  |  |  | 2.2 |
Technology and patents |  |  | 90,738 |  |  |  | (87,237 | ) |  |  | 3,501 |  |  |  | 0.9 |
Total |  | $ | 201,223 |  |  | $ | (175,875 | ) |  | $ | 25,348 |  |  |  |

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