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Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 27, 2020	Dec. 28, 2019
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross	$ 208,482	$ 208,672
Accumulated Amortization	164,697	151,062
Intangible Assets, Net	43,785	57,610
Developed technologies
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross	155,766	154,951
Accumulated Amortization	125,918	116,138
Intangible Assets, Net	29,848	38,813
Trade names
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross	7,817	7,816
Accumulated Amortization	7,125	6,976
Intangible Assets, Net	692	840
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross	43,217	44,229
Accumulated Amortization	29,972	27,057
Intangible Assets, Net	13,245	17,172
Backlog
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross	1,682	1,676
Accumulated Amortization	1,682	891
Intangible Assets, Net	$ 0	$ 785

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Topic 350
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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