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Goodwill and Intangibles - Intangibles (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 29, 2024 | Sep. 24, 2023 | Sep. 29, 2024 | Sep. 24, 2023 | Mar. 31, 2024 | Jan. 01, 2024 | Dec. 31, 2023
Intangible assets subject to amortization |  |  |  |  |  |  |
Gross Carrying Amount | $ 332.3 |  | $ 332.3 |  |  |  | $ 298.1
Accumulated Amortization | (162.3) |  | (162.3) |  |  |  | (147.5)
Net Carrying Amount | 170.0 |  | 170.0 |  |  |  | 150.6
Indefinite-lived intangible assets |  |  |  |  |  |  |
Indefinite-lived intangible assets | 71.5 |  | 71.5 |  |  |  | 65.5
Intangible assets |  |  |  |  |  |  |
Gross Carrying Amount | 403.8 |  | 403.8 |  |  |  | 363.6
Net Carrying Amount | 241.5 |  | 241.5 |  |  |  | 216.1
Aggregate amortization expense for amortized intangible assets | 5.1 | $ 3.0 | 14.9 | $ 9.0 |  |  |
Patents |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  |  |  |
Gross Carrying Amount | 5.0 |  | 5.0 |  |  |  | 5.0
Accumulated Amortization | (5.0) |  | (5.0) |  |  |  | (5.0)
Customer relationships |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  |  |  |
Gross Carrying Amount | 252.2 |  | 252.2 |  |  |  | 218.0
Accumulated Amortization | (96.8) |  | (96.8) |  |  |  | (85.3)
Net Carrying Amount | 155.4 |  | 155.4 |  |  |  | 132.7
Technology |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  |  |  |
Gross Carrying Amount | 53.2 |  | 53.2 |  |  |  | 53.2
Accumulated Amortization | (47.0) |  | (47.0) |  |  |  | (44.2)
Net Carrying Amount | 6.2 |  | 6.2 |  |  |  | 9.0
Trade names |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  |  |  |
Gross Carrying Amount | 20.8 |  | 20.8 |  |  |  | 20.8
Accumulated Amortization | (12.7) |  | (12.7) |  |  |  | (12.3)
Net Carrying Amount | 8.1 |  | 8.1 |  |  |  | 8.5
Other |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  |  |  |
Gross Carrying Amount | 1.1 |  | 1.1 |  |  |  | 1.1
Accumulated Amortization | (0.8) |  | (0.8) |  |  |  | (0.7)
Net Carrying Amount | $ 0.3 |  | $ 0.3 |  |  |  | $ 0.4
Josam Industries, LLC |  |  |  |  |  |  |
Intangible assets |  |  |  |  |  |  |
Purchase price allocated to intangible assets |  |  |  |  | $ 39.4 |  |
Intangible assets finite lived |  |  |  |  |  | $ 39.4 |
Estimated useful lives |  |  |  |  | 15 years |  |
Intangible assets In-definite lived |  |  |  |  | $ 5.9 |  |
Josam Industries, LLC | Customer relationships |  |  |  |  |  |  |
Intangible assets |  |  |  |  |  |  |
Intangible assets finite lived |  |  |  |  | $ 33.5 | $ 33.5 |
Estimated useful lives |  |  |  |  |  | 15 years |

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- Definition Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479907/805-20-50-1 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479907/805-20-50-1 + Details
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