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Fair Value Measurements - Narrative (Details) $ in Millions | 1 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jul. 31, 2023 USD ($) item | Dec. 31, 2023 USD ($) | Jun. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Jul. 01, 2022 USD ($) | May 31, 2021 USD ($) | Apr. 06, 2021 USD ($)
Exchange Traded Investment Grade Bond Funds |  |  |  |  |  |  |
Investments, Total |  |  | $ 25.0 |  |  |  |
Investments, Fair Value Disclosure, Total |  |  | 23.7 |  |  |  |
Asuragen, Inc. |  |  |  |  |  |  |
Contingent consideration |  |  | 2.0 |  |  |  | $ 18.3
Maximum contingent consideration |  | $ 105.0 |  |  |  |  |
Namocell Inc |  |  |  |  |  |  |
Contingent consideration |  |  | $ 1.5 |  | $ 10.6 |  |
Maximum contingent consideration |  | $ 25.0 |  |  |  |  |
Forward starting swaps | Cash flow hedges | Designated as hedging instruments |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | $ 100.0 |  | $ 200.0 |
Cross-currency swap | Net investment hedge | Designated as hedging instruments |  |  |  |  |  |  |
Derivative, Notional Amount | $ 150.0 |  |  |  |  |  |
Number of interim settlement dates | item | 4 |  |  |  |  |  |
Notional amount at maturity | $ 110.0 |  |  |  |  |  |
Decrease in notional amount at each interim date | $ 10.0 |  |  |  |  |  |

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