CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 241,738,000	$ 108,928,000
Short-term investments	150,000,000	0
Accounts receivable, net of allowance for doubtful accounts of $1,245 and $575 as of December 31, 2019 and 2018, respectively	40,875,000	16,623,000
Inventories	28,983,000	8,934,000
Deferred costs and other, current	16,051,000	6,022,000
Prepaid expenses and other current assets	9,860,000	4,935,000
Total current assets	487,507,000	145,442,000
Property and equipment, net	10,354,000	5,837,000
Restricted cash, noncurrent	1,270,000	179,000
Goodwill	35,801,000	15,709,000
Intangible assets, net	16,469,000	5,154,000
Deferred costs and other, noncurrent	5,700,000	2,447,000
Other noncurrent assets	3,460,000	5,485,000
TOTAL ASSETS	560,561,000	180,253,000
Current liabilities:
Accounts payable	8,362,000	6,377,000
Accrued expenses and other current liabilities	27,801,000	16,152,000
Deferred revenue, current	3,945,000	1,614,000
Advance payments from partner, current	1,767,000	293,000
Total current liabilities	41,875,000	24,436,000
Deferred revenue, noncurrent	654,000	437,000
Advance payment from partner, noncurrent	7,754,000	6,432,000
Other noncurrent liabilities	2,914,000	3,825,000
TOTAL LIABILITIES	53,197,000	35,130,000
Commitments and contingencies (Note 8)
Redeemable convertible preferred stock, par value of $0.001 per share; zero and 58,615 shares authorized, issued and outstanding as of December 31, 2019 and 2018, respectively; aggregate liquidation preference of zero and $237,650 as of December 31, 2019 and 2018, respectively	0	236,929,000
Stockholders’ equity (deficit):
Preferred stock, par value of $0.001 per share; 100,000 and zero shares authorized as of December 31, 2019 and 2018, respectively; zero shares issued and outstanding as of December 31, 2019 and 2018, respectively	0	0
Common stock, par value of $0.001 per share; 900,000 and 99,250 shares authorized as of December 31, 2019 and 2018, respectively; 95,301 and 17,691 shares issued and outstanding as of December 31, 2019 and 2018, respectively	95,000	18,000
Additional paid-in capital	671,467,000	21,789,000
Accumulated deficit	(164,198,000)	(113,613,000)
TOTAL STOCKHOLDERS’ EQUITY (DEFICIT)	507,364,000	(91,806,000)
TOTAL LIABILITIES, REDEEMABLE CONVERTIBLE PREFERRED STOCK, AND STOCKHOLDERS’ EQUITY (DEFICIT)	$ 560,561,000	$ 180,253,000