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FAIR VALUE - Narrative (Details) |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 03, 2021 USD ($) | Oct. 04, 2019 USD ($) | Dec. 31, 2022 USD ($) | Mar. 28, 2020 reportingUnit | Dec. 31, 2022 USD ($) reportingUnit | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) reportingUnit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |  |  |  |  |
Contingent Consideration Liability Fair Value Adjustment |  |  |  |  | $ 0 | $ 2,200,000 | $ 0
Impairment charge | $ 0 |  | $ 0 |  | $ 0 | 0 | $ 86,300,000
Number of reporting units impaired | reportingUnit |  |  |  | 4 | 4 |  | 4
Equity investment impairment |  |  |  |  | $ 0 | 0 | $ 3,493,000
Severance costs |  |  |  |  |  | 600,000 | 2,600,000
Aerospace |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |  |  |  |  |
Impairment charge |  |  |  |  |  |  | 86,300,000
Impairment charge to right-of-use assets |  |  |  |  |  |  | 700,000
Severance costs |  |  |  |  |  | 300,000 | $ 4,900,000
Recurring Basis | Level 3 | Other Assets |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |  |  |  |  |
Financial assets carried at fair value |  |  | 0 |  | 0 | 0 |
Recurring Basis | Level 3 | Other Liabilities |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |  |  |  |  |
Financial liabilities carried at fair value |  |  | $ 0 |  | 0 | 0 |
Nonrecurring Basis | Level 3 |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |  |  |  |  |
Impairment charge |  |  |  |  | $ 0 | 0 |
Diagnosys Test Systems Limited |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |  |  |  |  |
Financial liabilities carried at fair value |  | $ 2,500,000 |  |  |  | 0 |
Potential additional earn-out |  | $ 13,000,000 |  |  |  |  |
Achievement period |  | 3 years |  |  |  |  |
Earn-out achievement benchmark |  | $ 72,000,000 |  |  |  |  |
Contingent Consideration Liability Fair Value Adjustment |  |  |  |  |  | $ 2,200,000 |

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