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ACQUISITIONS AND DISCONTINUED OPERATIONS - Acquisition of ASPEQ (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Jun. 02, 2023 | Dec. 31, 2022
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Assets acquired: |  |  |
Goodwill | $ 674.9 |  | $ 455.3
ASPEQ Parent Holdings, Inc. |  |  |
Assets acquired: |  |  |
Current assets, including cash and equivalents of $0.9 |  | $ 42.1 |
Property, plant and equipment |  | 10.6 |
Goodwill |  | 168.9 |
Intangible assets |  | 246.1 |
Other assets |  | 1.3 |
Total assets acquired |  | 469.0 |
Current liabilities assumed |  | 11.3 |
Non-current liabilities assumed |  | 35.0 |
Net assets acquired |  | 422.7 |
Deferred income tax liabilities |  | 34.0 |
Other liabilities |  | $ 1.0 |

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