Business Combinations (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jan. 03, 2020	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Acquired Indefinite-lived Intangible Assets [Line Items]
Goodwill, Purchase Accounting Adjustments		$ 6,000
Finite-Lived Intangible Assets, Purchase Accounting Adjustments		(5,400)
Bal Seal [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ (10,953)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Restricted Cash	1,932
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	9,525
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contract Assets	784
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	13,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	81,997
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Right-of-use Asset	653
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets	2,492
Business Acquisition, Goodwill, Expected Tax Deductible Amount	110,789
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	94,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	(9,679)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	317,546
Business Combination, Recognized Identifiable Assets Acquired and Liability Assumed, Cash and Cash Equivalents and Restricted Cash	12,885
Business Combination, Consideration Transferred				$ 304,661
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		18,100		41,400
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual		(8,100)		(13,900)
Pro Forma Nonrecurring Adjustment, Deferred Compensation Expense			$ 5,700		$ 11,400
Pro Forma Adjustment, Inventory Step-up			1,200		2,400
Pro Forma Adjustment, Finite-Lived Assets Amortization			2,500		4,200
Pro Forma Nonrecurring Adjustment, Income Tax Expense		$ 3,000	(1,600)	$ 6,600	(4,500)
Pro Forma Adjustment, Reduction in Building Expense			$ 1,000		2,100
Pro Forma Nonrecurring Adjustment, Acquisition-Related Expense					$ 8,500
Bal Seal [Member] | Customer Relationships [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	56,700
Bal Seal [Member] | Technology-Based Intangible Assets [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	25,300
Bal Seal [Member] | Trade Names [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 11,000
Finite-Lived Intangible Asset, Useful Life	40 years
Bal Seal [Member] | Order or Production Backlog [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 1,600
Finite-Lived Intangible Asset, Useful Life	1 year
Bal Seal [Member] | Minimum | Customer Relationships [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	28 years
Bal Seal [Member] | Minimum | Technology-Based Intangible Assets [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Bal Seal [Member] | Maximum | Customer Relationships [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	36 years
Bal Seal [Member] | Maximum | Technology-Based Intangible Assets [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	13 years