v3.21.2
UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Current assets    
Cash and cash equivalents $ 50,453 $ 56,882
Marketable securities - available-for-sale debt securities 234,917 311,335
Accounts receivable, net of allowance for doubtful accounts of $0 and $0 2,158 139
Other current assets and prepaid expenses 49,816 29,796
Total current assets 337,344 398,152
Restricted cash 4,632 4,602
Operating lease right-of-use assets, net of accumulated amortization 17,772 18,880
Property, plant and equipment, net of accumulated depreciation of $34,360 (2020: $31,097) 28,663 27,778
Intangibles, net of accumulated amortization 1,382 1,730
Total assets 389,793 451,142
Current liabilities    
Accounts payable 6,977 6,389
Operating lease liabilities, current 2,922 2,773
Accrued expenses and other accrued liabilities 26,606 27,079
Deferred revenue, current 4,911 2,832
Total current liabilities 41,416 39,073
Operating lease liabilities, non-current 19,723 20,938
Deferred revenue, non-current 50,048 49,260
Other liabilities, non-current 667 644
Total liabilities 111,854 109,915
Stockholders' equity    
Common stock - Ordinary shares par value ?0.001, 1,240,853,520 authorized and 936,237,126 1,336 1,325
Additional paid in capital 949,575 935,706
Accumulated other comprehensive loss (10,385) (10,048)
Accumulated deficit (662,587) (585,756)
Total stockholders' equity 277,939 341,227
Total liabilities and stockholders' equity $ 389,793 $ 451,142

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