Condensed Consolidated Statements of Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 320,268	$ 359,429
Cost of revenue	77,725	74,075
Gross profit	242,543	285,354
Operating expenses:
Research and development	5,989	5,422
Selling and marketing	7,940	5,008
General and administrative	25,775	8,002
Amortization of intangible assets	906
Total operating expenses	40,610	18,432
Operating income	201,933	266,922
Interest and other income, net	45	282
Income before income taxes	201,978	267,204
Provision for income taxes	48,421	66,513
Net income from consolidated operations	153,557	200,691
Net loss attributable to noncontrolling interests	422
Net income attributable to Fulgent	$ 153,979	$ 200,691
Net income per common share attributable to Fulgent:
Basic	$ 5.09	$ 6.96
Diluted	$ 4.93	$ 6.52
Weighted-average common shares:
Basic	30,234	28,831
Diluted	31,240	30,770