Condensed Consolidated Statements of Operations (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenue	$ 81,803	$ 71,028	$ 155,266	$ 135,513
Cost of revenue	47,368	44,537	92,485	86,918
Gross profit	34,435	26,491	62,781	48,595
Operating expenses:
Research and development	13,480	13,486	25,875	24,920
Selling and marketing	12,286	8,595	20,751	17,584
General and administrative	26,392	21,326	51,683	42,815
Amortization of intangible assets	1,990	1,990	3,980	3,980
Total operating expenses	54,148	45,397	102,289	89,299
Operating loss	(19,713)	(18,906)	(39,508)	(40,704)
Other income (expenses):
Interest income	8,091	7,706	16,109	15,091
Interest expense	(17)	(25)	(31)	224
Impairment loss	(9,926)		(9,926)
Other income, net	46	11	114	2
Total other (expense) income, net	(1,806)	7,692	6,266	15,317
Loss before income taxes	(21,519)	(11,214)	(33,242)	(25,387)
Benefit from income taxes	(2,263)	(2,124)	(2,087)	(2,451)
Net loss from consolidated operations	(19,256)	(9,090)	(31,155)	(22,936)
Net loss attributable to noncontrolling interests	299	380	668	764
Net loss attributable to Fulgent	$ (18,957)	$ (8,710)	$ (30,487)	$ (22,172)
Net loss per common share attributable to Fulgent
Basic	$ (0.62)	$ (0.29)	$ (0.99)	$ (0.74)
Diluted	$ (0.62)	$ (0.29)	$ (0.99)	$ (0.74)
Weighted-average common shares:
Basic	30,544	30,098	30,687	29,933
Diluted	30,544	30,098	30,687	29,933