Segment, Geographic, and Significant Customer Information (Tables)

12 Months Ended

Dec. 29, 2018

Segment Reporting [Abstract]

Total net revenue

The following tables summarize total net revenues and long-lived assets (excluding intangible assets) attributed to significant countries (in thousands):

	Years Ended
	December 29, 2018		December 30, 2017		December 31, 2016
Total net revenues (1):
South Korea	$	108,938	$	94,082	$	44,735
China		72,305		29,826		43,460
Japan		64,252		41,979		26,604
United States		29,415		33,983		29,887
Singapore		22,167		21,810		37,096
Taiwan		14,012		20,147		27,189
Other		13,434		16,794		12,158
Total net revenues	$	324,523	$	258,621	$	221,129

⁽¹⁾ Net revenues are attributed to countries based on the customer's deployment and service locations of systems.

Long-lived tangible assets

	Years Ended
	December 29, 2018		December 30, 2017
Long-lived tangible assets:
United States	$	46,325	$	43,427
Taiwan		275		510
South Korea		420		576
Japan		59		60
Singapore		618		92
All Other		203		145
Total long-lived tangible assets	$	47,900	$	44,810