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Segment Reporting and Geographic Information - (Tables)

3 Months Ended

Mar. 29, 2025

Segment Reporting [Abstract]

Schedule of Revenue from External Customers by Products and Services

The following table lists the different sources of revenue:

		Three Months Ended
		March 29,								March 30,
		2025								2024
		(in thousands, except for percentages)
Systems and software		$	231,150				87	%		$	194,836				85	%
Parts			18,176				7	%			20,108				9	%
Services			17,281				6	%			13,902				6	%
Total revenue		$	266,607				100	%		$	228,846				100	%

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The table below presents the Company’s consolidated operating results including significant segment expenses:

		Three Months Ended
		March 29,				March 30,
		2025				2024
		(in thousands)
Revenue		$	266,607			$	228,846
Less:
Adjusted cost of revenue (1)			119,739				109,737
Adjusted research and development (1)			28,720				26,358
Adjusted sales and marketing (1)			19,716				18,223
Adjusted general and administrative (2)			21,937				17,228
Other segment items:
Restructuring expenses (3)			4,758				1,046
Merger and acquisitions related expenses (3)			158				374
Litigation expenses (3)			—				30
Amortization			8,445				13,112
Operating income			63,134				42,738
Interest income, net			9,266				7,361
Other (expense) income, net			(743	)			793
Provision for income taxes			7,562				4,039
Net income		$	64,095			$	46,853
(1) Excludes restructuring expenses and merger and acquisition related expenses
(2) Excludes restructuring expenses, litigation expenses and merger and acquisition related expenses
(3) The Company excludes these expenses in order to provide better comparability between periods as they are not representative of the Company's ongoing operations.

Depreciation expense is a significant expense related to research and development expenses, sales and marketing expenses and general and administrative expenses as shown above. For the three months ended March 29, 2025 and March 30, 2024, depreciation expense was $4.4 million and $3.4 million, respectively.

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area

For geographical revenue reporting, revenue is attributed to the geographic location to which the product is shipped. Revenue by geographic region is as follows:

		Three Months Ended
		March 29,				March 30,
		2025				2024
		(in thousands)
Revenue from third parties:
Taiwan		$	102,581			$	71,103
South Korea			93,314				80,239
United States			25,597				20,868
Europe			16,544				6,229
China			12,176				20,994
Japan			8,369				13,335
Southeast Asia			8,026				16,078
Total revenue		$	266,607			$	228,846

Schedule of Revenue by Major Customer by Reporting Segments

The following customers accounted for 10% or more of total revenue for the indicated periods:

		Three Months Ended
		March 29,				March 30,
		2025				2024
Customer A			24	%			26	%
Customer B			21	%			26	%
Customer C			14	%			12	%

Three customers’ net accounts receivable balances were individually greater than 10% of net accounts receivable at March 29, 2025, representing, in the aggregate approximately 53% of the Company’s total net accounts receivable.

Two customers’ net accounts receivable balances were individually greater than 10% of net accounts receivable at December 28, 2024, representing, in the aggregate approximately 47% of the Company’s total net accounts receivable.

Substantially all of the Company’s long-lived assets are located within the United States of America.

X

- Definition

Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information.

+ References

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-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-Publisher FASB
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- Definition

Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer.

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- Definition

Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries.

+ References

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-SubTopic 10
-Name Accounting Standards Codification
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Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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