Acquisitions - Narrative (Details) $ in Thousands											1 Months Ended	3 Months Ended	12 Months Ended
	May 23, 2022 USD ($)	Mar. 09, 2022 USD ($)	Dec. 30, 2021 USD ($)	Dec. 27, 2021 USD ($)	Dec. 10, 2021 USD ($)	Nov. 18, 2020 USD ($) shares	Jun. 30, 2020 USD ($)	Jun. 15, 2020 USD ($)	Apr. 17, 2020 USD ($)	Feb. 24, 2020 USD ($)	Dec. 30, 2021 USD ($)	Sep. 27, 2020 USD ($)	Dec. 25, 2022 USD ($)	Dec. 26, 2021 USD ($)	Dec. 27, 2020 USD ($)
Business Acquisition [Line Items]
Merger and acquisition related items													$ 700	$ 1,800	$ 1,700
Deferred tax assets, net													$ 70,300	$ 69,600
Level 3 | Discount Rate | Income Approach
Business Acquisition [Line Items]
Discount rate	0.064												0.11
Level 3 | Royalty Rate | Income Approach
Business Acquisition [Line Items]
Discount rate													0.11
Level 3 | Royalty Rate | Income Approach | Minimum
Business Acquisition [Line Items]
Discount rate	0.11
Level 3 | Royalty Rate | Income Approach | Maximum
Business Acquisition [Line Items]
Discount rate	0.12
Technical Directions, Inc.
Business Acquisition [Line Items]
Cash paid										$ 10,500
Working capital adjustments												$ 300
Optimized Performance Machining, Inc. (OPM)
Business Acquisition [Line Items]
Cash paid									$ 1,800
Working capital adjustments												$ 30
CPI ASC Signal Division, Inc.
Business Acquisition [Line Items]
Cash paid								$ 34,900
Net payment								1,400
Aggregate purchase price								$ 32,900
Net liabilities							$ 9,100
Deferred tax liabilities, net							1,100
Business combination, pro forma information, revenue of acquiree since acquisition date, actual															21,900
Business combination, pro forma information, earnings or loss of acquiree since acquisition date, actual															1,100
Merger and acquisition related items															$ 1,100
CPI ASC Signal Division, Inc. | Customer relationships
Business Acquisition [Line Items]
Intangible assets							$ 2,000
Acquired finite-lived intangible assets, weighted average useful life							5 years
CPI ASC Signal Division, Inc. | Trade names
Business Acquisition [Line Items]
Intangible assets							$ 100
Acquired finite-lived intangible assets, weighted average useful life							1 year
CPI ASC Signal Division, Inc. | Developed technology and technical know-how
Business Acquisition [Line Items]
Intangible assets							$ 2,200
Acquired finite-lived intangible assets, weighted average useful life							7 years
5-D Systems, Inc
Business Acquisition [Line Items]
Cash paid						$ 5,000
Aggregate purchase price						$ 10,000
Number of shares issued (in shares) | shares						250,374
Business acquisition, equity interest issued or issuable, value assigned						$ 5,000
CTT, Inc.
Business Acquisition [Line Items]
Cash paid			$ 15,200		$ 6,300						$ 22,000
Cosmic Advanced Engineering Solutions, Inc.
Business Acquisition [Line Items]
Cash paid	$ 74,400			$ 39,000
Aggregate purchase price	79,400			37,900
Net liabilities	2,500			6,700
Deferred tax liabilities, net				2,400
Business combination, pro forma information, revenue of acquiree since acquisition date, actual													$ 59,900
Business combination, pro forma information, earnings or loss of acquiree since acquisition date, actual													400
Payments to acquire business, subject to adjustments				37,500
Payments to acquire businesses, amount not included holdback paid at later				$ 400
Common stock issued	5,000
Deferred tax assets, net	200
Cosmic Advanced Engineering Solutions, Inc. | Customer relationships
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life				10 years
Finite-lived intangible assets acquired				$ 4,400
Cosmic Advanced Engineering Solutions, Inc. | In orocess research and development
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 7,300
Cosmic Advanced Engineering Solutions, Inc. | Contracts and backlog
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	3 years			1 year
Finite-lived intangible assets acquired	$ 2,500			$ 1,700
Cosmic Advanced Engineering Solutions, Inc. | Trade names
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	5 years			5 years
Finite-lived intangible assets acquired	$ 500			$ 600
Cosmic Advanced Engineering Solutions, Inc. | Developed technology and technical know-how
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	3 years			5 years
Finite-lived intangible assets acquired	$ 500			$ 1,800
Southern Research Engineering Division
Business Acquisition [Line Items]
Cash paid		$ 74,400
Aggregate purchase price		79,400
Business combination, pro forma information, revenue of acquiree since acquisition date, actual													26,800
Business combination, pro forma information, earnings or loss of acquiree since acquisition date, actual													$ 2,900
Common stock issued		$ 5,000