Acquisition - Summary of Allocation of Total Purchase Consideration to Initial Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Nov. 15, 2018	Dec. 30, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill	$ 26,372		$ 10,232	$ 8,940
4D Technology [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		$ 1,414
Accounts receivable, net		4,156
Inventories		4,563
Prepaid and other current assets		104
Property and equipment		145
Accounts payable		(702)
Accrued liabilities		(760)
Deferred revenue		(197)
Deferred tax liabilities		(5,408)
Total assets acquired/liabilities assumed		3,315
Total identified intangible assets		23,500
Total identifiable net assets		26,815
Goodwill		15,762
Total purchase consideration		42,577
4D Technology [Member] | Developed technology [Member]
Business Acquisition [Line Items]
Total identified intangible assets		15,500
4D Technology [Member] | In-process research and development [Member]
Business Acquisition [Line Items]
Total identified intangible assets		1,400
4D Technology [Member] | Customer relationships [Member]
Business Acquisition [Line Items]
Total identified intangible assets		4,600
4D Technology [Member] | Backlog [Member]
Business Acquisition [Line Items]
Total identified intangible assets		500
4D Technology [Member] | Trade name [Member]
Business Acquisition [Line Items]
Total identified intangible assets		$ 1,500