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FAIR VALUE - Narrative (Details) € in Millions, $ in Millions | 3 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 02, 2021 USD ($) | Sep. 26, 2020 USD ($) | Oct. 02, 2021 USD ($) | Sep. 26, 2020 USD ($) | Oct. 02, 2021 EUR (€) | Aug. 02, 2021 USD ($) | Dec. 31, 2020 USD ($) | Nov. 11, 2020 USD ($) | Dec. 30, 2016 EUR (€)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |
Realized gain on fair value adjustment | $ 1.6 | $ 2.1 | $ 9.0 | $ 7.4 |  |  |  |  |
Security at fair value | 36.0 |  | 36.0 |  |  |  | $ 27.0 |  |
Sensors & Software Inc. |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |
Deferred payment |  |  |  |  |  |  |  | $ 3.9 |
Contingent consideration liability | 0.7 |  | 0.7 |  |  |  |  |  |
Enterprise Control Systems Ltd |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |
Deferred payment |  |  |  |  |  | $ 16.8 |  |  |
Contingent consideration liability | $ 8.2 |  | $ 8.2 |  |  |  |  |  |
Discontinued Operations, Disposed of by Sale | Buyer | Balcke Durr Business |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |
Amount of guarantees | € |  |  |  |  |  |  |  |  | € 79.0
Discontinued Operations, Disposed of by Sale | Buyer | Bank and Surety Bonds | Balcke Durr Business |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |
Amount of guarantees | € |  |  |  |  |  |  |  |  | 79.0
Discontinued Operations, Disposed of by Sale | Buyer | Balcke-Durr | Balcke Durr Business |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |
Cash collateral | € |  |  |  |  | € 0.0 |  |  |  | 4.0
Discontinued Operations, Disposed of by Sale | Buyer | mutares AG | Indemnification Agreement | Balcke Durr Business |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |
Amount of guarantees | € |  |  |  |  | € 1.0 |  |  |  | € 5.0

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