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Goodwill and Other Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 29, 2019 | Dec. 30, 2018 | Dec. 31, 2017
Acquired finite-lived intangible assets: |  |  |
Gross Value | $ 139.7 | $ 108.9 |
Accumulated Amortization | (107.1) | (99.7) |
Total | 32.6 | 9.2 |
Total intangible assets, Gross Value | 146.6 | 115.8 |
Total intangible assets, Net Value | 39.5 | 16.1 |
Aggregate amortization expense for finite-live intangible assets | 7.4 | 5.9 | $ 10.4
Trade names |  |  |
Acquired finite-lived intangible assets: |  |  |
Indefinite-lived trade names | 6.9 | 6.9 |
Customer relationships |  |  |
Acquired finite-lived intangible assets: |  |  |
Gross Value | 72.3 | 52.6 |
Accumulated Amortization | (53.3) | (50.6) |
Total | 19.0 | 2.0 |
Contracts and backlog |  |  |
Acquired finite-lived intangible assets: |  |  |
Gross Value | 32.0 | 29.9 |
Accumulated Amortization | (28.4) | (26.4) |
Total | 3.6 | 3.5 |
Developed technology and technical know-how |  |  |
Acquired finite-lived intangible assets: |  |  |
Gross Value | 25.0 | 25.0 |
Accumulated Amortization | (23.8) | (21.3) |
Total | 1.2 | 3.7 |
Trade names |  |  |
Acquired finite-lived intangible assets: |  |  |
Gross Value | 1.9 | 1.4 |
Accumulated Amortization | (1.6) | (1.4) |
Total | 0.3 | 0.0 |
Favorable Operating Lease [Member] |  |  |
Acquired finite-lived intangible assets: |  |  |
Gross Value | 8.5 | 0.0 |
Accumulated Amortization | 0.0 | 0.0 |
Total | $ 8.5 | $ 0.0 |

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