Overview and Basis of Presentation	12 Months Ended
Dec. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Overview and Basis of Presentation	Note 1. Overview and Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America, or U.S. GAAP. These financial statements include the assets, liabilities, revenues and expenses of all subsidiaries and entities in which the Company has a controlling financial interest or is deemed to be the primary beneficiary. In determining whether the Company is the primary beneficiary of an entity, the Company applies a qualitative approach that determines whether it has both (i) the power to direct the economically significant activities of the entity and (ii) the obligation to absorb losses of, or the right to receive benefits from, the entity that could potentially be significant to that entity. The Company uses the equity method to account for its investments in entities that it does not control, but in which it has the ability to exercise significant influence over operating and financial policies. All significant intercompany accounts and transactions are eliminated from the accompanying consolidated financial statements. Nature of the Business Fulgent Genetics, Inc., together with its subsidiaries and an affiliated professional corporation, or PC, collectively referred to as the Company, unless otherwise noted or the context otherwise requires, is a technology company offering large-scale COVID-19 testing services, molecular diagnostic testing services and comprehensive genetic testing designed to provide physicians with clinically actionable diagnostic information to improve the quality of patient care. The PC was established in November 2021, with which the Company has a management services arrangement, and the PC provides professional pathology and related professional services to its patients. A cornerstone of the Company’s business is its ability to provide expansive options and flexibility for all clients’ unique testing needs. To this end, the Company has developed a proprietary technology platform allowing it to offer a broad and flexible test menu and to continually expand and improve its proprietary genetic reference library, while maintaining accessible pricing, high accuracy and competitive turnaround times. Combining next generation sequencing, or NGS, with its technology platform, the Company performs full-gene sequencing with deletion/duplication analysis in single-gene tests; pre-established, multi-gene, disease-specific panels; and customized panels that can be tailored to meet specific customer needs.

Overview and Basis of Presentation

12 Months Ended

Dec. 31, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Note 1. Overview and Basis of Presentation

The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America, or U.S. GAAP. These financial statements include the assets, liabilities, revenues and expenses of all subsidiaries and entities in which the Company has a controlling financial interest or is deemed to be the primary beneficiary. In determining whether the Company is the primary beneficiary of an entity, the Company applies a qualitative approach that determines whether it has both (i) the power to direct the economically significant activities of the entity and (ii) the obligation to absorb losses of, or the right to receive benefits from, the entity that could potentially be significant to that entity. The Company uses the equity method to account for its investments in entities that it does not control, but in which it has the ability to exercise significant influence over operating and financial policies. All significant intercompany accounts and transactions are eliminated from the accompanying consolidated financial statements.

Nature of the Business

Fulgent Genetics, Inc., together with its subsidiaries and an affiliated professional corporation, or PC, collectively referred to as the Company, unless otherwise noted or the context otherwise requires, is a technology company offering large-scale COVID-19 testing services, molecular diagnostic testing services and comprehensive genetic testing designed to provide physicians with clinically actionable diagnostic information to improve the quality of patient care. The PC was established in November 2021, with which the Company has a management services arrangement, and the PC provides professional pathology and related professional services to its patients. A cornerstone of the Company’s business is its ability to provide expansive options and flexibility for all clients’ unique testing needs. To this end, the Company has developed a proprietary technology platform allowing it to offer a broad and flexible test menu and to continually expand and improve its proprietary genetic reference library, while maintaining accessible pricing, high accuracy and competitive turnaround times. Combining next generation sequencing, or NGS, with its technology platform, the Company performs full-gene sequencing with deletion/duplication analysis in single-gene tests; pre-established, multi-gene, disease-specific panels; and customized panels that can be tailored to meet specific customer needs.