Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 214,877	$ 87,426
Marketable securities	255,102	211,941
Trade accounts receivable, net of allowance for credit losses of $6,893 and $1,898 as of September 30, 2021 and December 31, 2020, respectively	120,822	183,857
Other current assets	32,035	40,392
Total current assets	622,836	523,616
Marketable securities, long-term	407,284	132,502
Redeemable preferred stock investment	20,000
Fixed assets, net	60,166	40,199
Acquisition-related intangible assets, net	36,684
Goodwill	48,749
Other long-term assets	8,949	4,144
Total assets	1,204,668	700,461
Current liabilities
Accounts payable	24,868	26,488
Income tax payable	17,875	53,319
Contract liabilities	7,879	26,576
Customer deposit	41,510	185
Investment margin loan	15,107	15,019
Other current liabilities	39,919	8,528
Total current liabilities	147,158	130,115
Notes payable	5,947
Unrecognized tax benefits	534	377
Other long-term liabilities	6,576	582
Total liabilities	160,215	131,074
Commitments and contingencies (Note 8)
Stockholders’ equity
Common stock, $0.0001 par value per share, 50,000 shares authorized, 29,829 and 28,178 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively	3	3
Preferred stock, $0.0001 par value per share, 1,000 shares authorized, no shares issued or outstanding at September 30, 2021 and December 31, 2020
Additional paid-in capital	483,731	418,065
Accumulated other comprehensive income (loss)	(212)	438
Retained earnings	553,258	150,881
Total Fulgent stockholders' equity	1,036,780	569,387
Noncontrolling interest	7,673
Total stockholders’ equity	1,044,453	569,387
Total liabilities and stockholders’ equity	$ 1,204,668	$ 700,461