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Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020
Finite-Lived Intangible Assets [Line Items]
Gross	$ 233,879	$ 239,542
Accumulated Amortization	197,537	180,395
Net	36,342	59,147
Existing developed technologies
Finite-Lived Intangible Assets [Line Items]
Gross	172,259	176,265
Accumulated Amortization	148,784	137,754
Net	23,475	38,511
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross	8,054	8,162
Accumulated Amortization	7,603	7,363
Net	451	799
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross	51,270	52,488
Accumulated Amortization	39,254	33,378
Net	12,016	19,110
Backlog
Finite-Lived Intangible Assets [Line Items]
Gross	1,896	2,227
Accumulated Amortization	1,896	1,900
Net	0	327
In-process research and development
Finite-Lived Intangible Assets [Line Items]
Gross	400	400
Accumulated Amortization	0	0
Net	$ 400	$ 400

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
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