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Business Combinations - Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | May 28, 2021 | Sep. 30, 2020
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Goodwill | $ 67,050 |  | $ 35,669
ID R&D |  |  |
Business Acquisition [Line Items] |  |  |
Current assets |  | $ 385 |
Property, plant, and equipment |  | 114 |
Intangible assets |  | 14,190 |
Goodwill |  | 30,866 |
Current liabilities |  | (397) |
Other non-current liabilities |  | (3,236) |
Net assets acquired |  | $ 41,922 |

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