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Post Retirement Benefit Plans - Plan Assets (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Plan Assets: |  |  |  |
Plan assets |  | $ 189.1 | $ 177.4 | $ 150.3
The Company's percentage of returns above the guaranteed minimum |  | 90.00% |  |
Percentage of returns above the guaranteed minimum to be retained by Swiss Life |  | 10.00% |  |
Swiss Pension Plan assets |  |  |  |
Plan Assets: |  |  |  |
Plan assets | [1] | $ 189.1 | 177.4 |
PMOD Plan | Swiss Life Collective BVG Foundation |  |  |  |
Plan Assets: |  |  |  |
Guaranteed minimum return on mandatory withdrawal portion of fund (as a percent) |  | 1.25% |  |
Guaranteed minimum return on non-mandatory withdrawal portion of fund (as a percent) |  | 0.50% |  |
Chemspeed Plan |  |  |  |
Plan Assets: |  |  |  |
Guaranteed minimum return on mandatory withdrawal portion of fund (as a percent) |  | 1.75% |  |
Guaranteed minimum return on non-mandatory withdrawal portion of fund (as a percent) |  | 3.50% |  |
Biognosys Plan [Member] |  |  |  |
Plan Assets: |  |  |  |
Guaranteed minimum return on mandatory withdrawal portion of fund (as a percent) |  | 8.00% |  |
Significant Unobservable Inputs (Level 3) |  |  |  |
Plan Assets: |  |  |  |
Plan assets |  | $ 189.1 | 177.4 |
Significant Unobservable Inputs (Level 3) | Swiss Pension Plan assets |  |  |  |
Plan Assets: |  |  |  |
Plan assets | [1] | $ 189.1 | $ 177.4 |
[1] | The Company’s pension plan in Switzerland is outsourced to Swiss Life AG for Bruker Switzerland AG and PMOD under a fully insured plan, Profond for Biognosys under a partially insured plan and Axa Stiftung Berufliche Vorsorge for Chemspeed under a partially insured plan. Starting January 1, 2025 the pension plan for Bruker Switzerland AG is outsourced to Profond under a partially insured plan. Members for the Bruker Switzerland AG and PMOD Plans are guaranteed an interest of 1.25% on mandatory retirement withdrawals and another 0.50% on the non-mandatory portion of the withdrawal benefit for the year 2024. Members for the Chemspeed Plan are guaranteed an interest of 1.75% on mandatory retirement withdrawals and another 3.50% on the non-mandatory portion of the withdrawal benefit for the year 2024. Members for the Biognosys plan are guaranteed an 8% interest for the overall account balance. The insurers utilize plan administrators and investment managers to oversee the investment allocation process, set long-term strategic targets and monitor asset allocations. Should the return be greater than the guaranteed amounts, the Company, according to Swiss law, shall receive 90% of the additional return with the insurers retaining 10%.

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- Definition Minimum rate of return guaranteed by the third-party insurance provider on the mandatory withdrawal portion of the fund, as defined by Swiss law. + References No definition available. + Details
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