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Fair Value Measurements - Narrative (Details) $ in Thousands | 3 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2023 USD ($) item | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($) | Dec. 31, 2023 USD ($) | Mar. 31, 2023 USD ($) | Jul. 01, 2022 USD ($) | May 31, 2021 USD ($) | Apr. 06, 2021 USD ($)
Income Tax Expense (Benefit), Total |  | $ 17,584 | $ 53,217 | $ 38,287 |  |  |  |  |
Exchange Traded Investment Grade Bond Funds |  |  |  |  |  |  |  |  |
Investments, Total |  |  | 25,000 |  |  |  |  |  |
Investments, Fair Value Disclosure, Total |  |  | 23,700 |  |  |  |  |  |
Asuragen, Inc. |  |  |  |  |  |  |  |  |
Contingent consideration |  |  | 2,000 |  |  |  |  |  | $ 18,300
Maximum contingent consideration |  |  |  |  | $ 105,000 |  |  |  |
Namocell Inc |  |  |  |  |  |  |  |  |
Contingent consideration |  |  | $ 1,500 |  |  |  | $ 10,600 |  |
Maximum contingent consideration |  |  |  |  | $ 25,000 |  | $ 25,000 |  |
Forward starting swaps | Cash flow hedges | Designated as hedging instruments |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  | $ 100,000 |  | $ 200,000 |
Cross-currency swap | Net investment hedge | Designated as hedging instruments |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | $ 150,000 |  |  |  |  |  |  |  |
Number of interim settlement dates | item | 4 |  |  |  |  |  |  |  |
Notional amount at maturity | $ 110,000 |  |  |  |  |  |  |  |
Derivative Notional Amount, Decrease in Period | $ 10,000 |  |  |  |  |  |  |  |

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