Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Acquisitions - Narrative (Details) - USD ($) $ in Thousands	Sep. 27, 2021	May 28, 2021	May 27, 2021	Dec. 30, 2020	Dec. 07, 2020	Oct. 01, 2021	Jul. 02, 2021
Business Acquisition [Line Items]
Goodwill						$ 805,315	$ 804,906
Pentek
Business Acquisition [Line Items]
Total consideration			$ 65,000
Useful life of acquired assets			15 years
Estimated fair value of identifiable intangible assets			$ 24,110
Goodwill			35,477
Tax deductible goodwill						$ 29,703
Pentek \| Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangible assets acquired			$ 15,560
Useful life of acquired assets			21 years
Pentek \| Developed Technology
Business Acquisition [Line Items]
Finite-lived intangible assets acquired			$ 6,340
Useful life of acquired assets			7 years
Pentek \| Backlog
Business Acquisition [Line Items]
Useful life of acquired assets			1 year
Estimated fair value of identifiable intangible assets			$ 2,210
Physical Optics Corporation
Business Acquisition [Line Items]
Total consideration					$ 310,000
Estimated fair value of identifiable intangible assets				$ 116,000
Goodwill				155,416
Post-closing adjustments		$ 2,641
Physical Optics Corporation \| Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 83,000
Useful life of acquired assets				11 years
Physical Optics Corporation \| Developed Technology
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 25,000
Useful life of acquired assets				9 years
Physical Optics Corporation \| Backlog
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 8,000
Useful life of acquired assets				1 year
Avalex
Business Acquisition [Line Items]
Total consideration	$ 155,000