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Acquisition - Narrative (Details) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Feb. 28, 2019 USD ($) | Feb. 27, 2019 USD ($) shares | Dec. 29, 2019 USD ($) shares | Dec. 30, 2018 USD ($) | Dec. 31, 2017 USD ($)
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition, equity interest issued or issuable, value assigned |  | $ 27.0 |  |  |
Deferred tax Liabilities, net |  |  | $ 9.0 | $ 7.0 |
Merger and acquisition related items |  |  | $ 2.3 | $ 0.0 | $ 0.0
Discount Rate | Income Approach | Level 3 |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Discount rate |  |  | 0.125 |  |
Royalty Rate | Income Approach | Level 3 |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Discount rate |  |  | 0.10 |  |
Florida Turbine Technologies, Inc. |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition, percentage of voting Interests acquired |  | 80.10% |  |  |
FTT Core, LLC |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition, percentage of voting Interests acquired |  | 80.10% |  |  |
FTT Inc |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition, percentage of voting Interests acquired |  | 80.10% |  |  |
Purchase price |  | $ 60.0 |  |  |
Payments to acquire businesses, gross, including amounts to be paid |  | 33.0 |  |  |
Cash paid | $ 17.7 | 20.7 |  |  |
Payments to acquire businesses, amount to be paid |  | $ 15.3 |  |  |
Payment period |  | 3 years |  |  |
Business combination, recognized identifiable assets acquired and liabilities assumed, current liabilities |  | $ 7.5 |  |  |
Deferred tax Liabilities, net |  | 7.0 |  |  |
Business combination, pro forma information, revenue of acquiree since acquisition date, actual |  |  | $ 52.5 |  |
Business combination, pro forma information, earnings or loss of acquiree since acquisition date, actual |  |  | 0.7 |  |
Merger and acquisition related items |  |  | $ 1.4 |  |
FTT Inc | Customer relationships |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-lived lntangible assets acquired |  | $ 19.7 |  |  |
Acquired finite-lived intangible assets, weighted average useful life |  | 13 years |  |  |
FTT Inc | In orocess research and development |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-lived lntangible assets acquired |  | $ 8.5 |  |  |
FTT Inc | Contracts and backlog |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-lived lntangible assets acquired |  | $ 2.1 |  |  |
Acquired finite-lived intangible assets, weighted average useful life |  | 2 years |  |  |
FTT Inc | Trade names |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-lived lntangible assets acquired |  | $ 0.5 |  |  |
Acquired finite-lived intangible assets, weighted average useful life |  | 2 years |  |  |
FTT Inc | Common Stock |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition, equity interest issued or issuable, number of shares | shares |  | 1,825,406 | 1,825,406 |  |

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