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Fair Value Measurements (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2021
--- | --- | --- | --- | --- | --- | ---
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Goodwill | $ 342,292 |  | $ 340,477 |  |  |
Fair Value, Inputs, Level 3 |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Contingent consideration fair value | 0 | $ 0 | 0 | $ 6,200 | $ 6,200 | $ 6,200
Total liabilities measured at fair value | 0 |  | 0 |  |  |
Estimate of Fair Value Measurement | Haxiot | Contingent Consideration | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Contingent consideration fair value | 0 |  | 0 |  |  |
Estimate of Fair Value Measurement | Ctek, Inc. ("Ctek") | Contingent Consideration | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Contingent consideration fair value | $ 0 |  | $ 0 |  |  |

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