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Segment and Geographic Information - Summary of Property, Equipment and Software, Net, and Right-of-use Assets, Net (Details) - USD ($)	Sep. 30, 2025	Dec. 31, 2024
Revenue from External Customer [Line Items]
Property, Equipment and Software, Net, and Right-of-use Assets, Net	$ 5,082	$ 3,544
Taiwan
Revenue from External Customer [Line Items]
Property, Equipment and Software, Net, and Right-of-use Assets, Net	3,747	2,139
China
Revenue from External Customer [Line Items]
Property, Equipment and Software, Net, and Right-of-use Assets, Net	711	593
North America
Revenue from External Customer [Line Items]
Property, Equipment and Software, Net, and Right-of-use Assets, Net	601	786
Rest of the World
Revenue from External Customer [Line Items]
Property, Equipment and Software, Net, and Right-of-use Assets, Net	$ 23	$ 26

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- Definition

Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-SubTopic 20
-Topic 842
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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