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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Current assets:    
Cash and cash equivalents $ 34,225 $ 49,348
Marketable securities available-for-sale 106,269 96,188
Accounts and other receivables, net 7,582 3,704
Inventories, net 36,629 19,022
Prepaid expenses and other current assets 6,745 6,102
Total current assets 191,450 174,364
Property and equipment, net 34,393 17,064
Intangible assets, net 7,147 11,717
Operating lease right-of-use assets 29,533  
Goodwill 2,131 2,144
Restricted cash 628 619
Other assets 1,799 4,976
Total assets 267,081 210,884
Current liabilities:    
Accounts payable 11,226 5,278
Accrued research and development 5,501 9,714
Accrued liabilities 19,550 16,041
Other current liabilities 8,296 7,000
Total current liabilities 44,573 38,033
Long-term debt, net 176,636 100,871
Long-term portion of lease liabilities 34,641  
Other long-term liabilities 643 8,915
Total liabilities 256,493 147,819
Commitments and contingencies (Note 6)
Stockholders’ equity:    
Preferred stock: $0.001 par value; 5,000 shares authorized at June 30, 2019 and December 31, 2018; no shares issued and outstanding at June 30, 2019 and December 31, 2018
Common stock: $0.001 par value; 139,000 shares authorized at June 30, 2019 and December 31, 2018; 65,155 and 62,862 shares issued and outstanding at June 30, 2019 and December 31, 2018, respectively 65 63
Additional paid-in capital 1,161,115 1,131,241
Accumulated other comprehensive loss (1,983) (2,015)
Accumulated deficit (1,148,609) (1,066,224)
Total stockholders’ equity 10,588 63,065
Total liabilities and stockholders’ equity $ 267,081 $ 210,884