Acquisition - Sinmat (Details) - USD ($) $ in Thousands		6 Months Ended	9 Months Ended
	Jan. 10, 2020	Jun. 27, 2020	Sep. 26, 2020	Sep. 28, 2019	Dec. 31, 2019
Business Combination, Separately Recognized Transactions [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired			$ 111,145	$ 266,373
Goodwill			$ 744,470		$ 695,044
Sinmat Acquisition
Business Combination, Separately Recognized Transactions [Line Items]
Date of acquisition			Jan. 10, 2020
Costs associated with acquisition			$ 700
Payments to acquire business	$ 76,200
Payments to Acquire Businesses, Net of Cash Acquired			75,600
Total purchase price, net of cash acquired	75,643	$ 75,645
Trade accounts and notes receivable, net	1,189	1,189
Inventories, net	1,010	1,010
Other current assets	8	8
Property, Plant, and Equipment	63	63
Identifiable Intangible Assets	41,680	41,680
Right-of-use assets	1,712	1,712
Deferred tax assets	0	102
Accounts Payable and accrued liabilities	(58)	(58)
Short-term lease liabilities	(150)	(150)
Long-term lease liability	(1,562)	(1,562)
Net assets acquired	43,892	43,994
Goodwill	$ 31,751	$ 31,651	$ 31,700
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		13 years 6 months
Sinmat Acquisition | Developed Technology
Business Combination, Separately Recognized Transactions [Line Items]
Identifiable Intangible Assets		$ 7,650
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years
Sinmat Acquisition | Trademarks and Trade names
Business Combination, Separately Recognized Transactions [Line Items]
Identifiable Intangible Assets		$ 130
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		1 year 3 months 18 days
Sinmat Acquisition | Customer Relationships
Business Combination, Separately Recognized Transactions [Line Items]
Identifiable Intangible Assets		$ 33,900
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		15 years