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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of changes in the carrying amount of goodwill | The following table sets forth the changes in the carrying amount of goodwill by segment (in millions):
|  | BSI BioSpin |  |  | BSI CALID |  |  | BSI NANO |  |  | BEST |  |  | Total |
Balance at December 31, 2021 |  | $ | 42.4 |  |  | $ | 57.9 |  |  | $ | 238.9 |  |  | $ | 0.3 |  |  | $ | 339.5 |
Current period additions |  |  | 18.6 |  |  |  | 55.3 |  |  |  | 58.0 |  |  |  | — |  |  |  | 131.9 |
Foreign currency impact |  |  | (3.2 | ) |  |  | (5.8 | ) |  |  | (4.8 | ) |  |  | — |  |  |  | (13.8 | )
Balance at December 31, 2022 |  |  | 57.8 |  |  |  | 107.4 |  |  |  | 292.1 |  |  |  | 0.3 |  |  |  | 457.6 |
Current period additions |  |  | 25.8 |  |  |  | 83.8 |  |  |  | 4.5 |  |  |  | — |  |  |  | 114.1 |
Current period adjustments |  |  | — |  |  |  | — |  |  |  | (5.0 | ) |  |  | — |  |  |  | (5.0 | )
Foreign currency impact |  |  | 2.9 |  |  |  | 10.3 |  |  |  | 2.7 |  |  |  | — |  |  |  | 15.9 |
Balance at December 31, 2023 |  |  | 86.5 |  |  |  | 201.5 |  |  |  | 294.3 |  |  |  | 0.3 |  |  |  | 582.6 |
Current period additions |  |  | 141.3 |  |  |  | 536.0 |  |  |  | 281.0 |  |  |  | — |  |  |  | 958.3 |
Foreign currency impact |  |  | (6.6 | ) |  |  | (21.5 | ) |  |  | (5.5 | ) |  |  | — |  |  |  | (33.6 | )
Balance at December 31, 2024 |  | $ | 221.2 |  |  | $ | 716.0 |  |  | $ | 569.8 |  |  | $ | 0.3 |  |  | $ | 1,507.3 |
Summary of intangible assets | The following is a summary of intangible assets (in millions):
|  | 2024 |  |  | 2023 |
|  | Gross |  |  |  |  |  | Net |  |  | Gross |  |  |  |  |  | Net |
|  | Carrying |  |  | Accumulated |  |  | Carrying |  |  | Carrying |  |  | Accumulated |  |  | Carrying |
|  | Amount |  |  | Amortization |  |  | Amount |  |  | Amount |  |  | Amortization |  |  | Amount |
Existing technology and related patents (a) |  | $ | 724.5 |  |  | $ | (291.3 | ) |  | $ | 433.2 |  |  | $ | 428.3 |  |  | $ | (250.4 | ) |  | $ | 177.9 |
Customer relationships |  |  | 550.6 |  |  |  | (125.6 | ) |  |  | 425.0 |  |  |  | 227.4 |  |  |  | (93.5 | ) |  |  | 133.9 |
Trade names (b) |  |  | 60.9 |  |  |  | (16.1 | ) |  |  | 44.8 |  |  |  | 28.4 |  |  |  | (10.1 | ) |  |  | 18.3 |
Other |  |  | 16.5 |  |  |  | (7.0 | ) |  |  | 9.5 |  |  |  | 2.2 |  |  |  | (1.8 | ) |  |  | 0.4 |
Intangible assets |  | $ | 1,352.5 |  |  | $ | (440.0 | ) |  | $ | 912.5 |  |  | $ | 686.3 |  |  | $ | (355.8 | ) |  | $ | 330.5 |
a) Included in existing technology and related patents, there is in process research and development of $2.7 million and $3.5 million as of December 31, 2024 and 2023, respectively. b) Included in trade names, there are indefinite lived assets of $2.8 million and $3.0 million as of December 31, 2024 and 2023, respectively.
Schedule of estimated future amortization expense related to amortizable intangible assets | The estimated future amortization expense related to amortizable intangible assets is as follows (in millions):
2025 |  | $ | 111.8 |
2026 |  |  | 106.8 |
2027 |  |  | 98.9 |
2028 |  |  | 93.9 |
2029 |  |  | 88.1 |
Thereafter |  |  | 407.5 |
Total |  | $ | 907.0 |

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