XML 28 R2.htm IDEA: XBRL DOCUMENT v3.6.0.2
CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 161,120 $ 93,569
Short-term investments 219,028 343,428
Restricted cash 1,411 150
Prepaid expenses and other current assets 20,136 13,060
Total current assets 401,695 450,207
Property and equipment, net 17,055 7,373
Restricted cash 2,076 2,135
Long-term investments 117,963 99,259
Other assets 1,837 595
Total assets 540,626 559,569
Current liabilities:    
Accounts payable 5,364 2,942
Accrued liabilities 54,554 24,784
Deferred rent—current portion 341 192
Total current liabilities 60,259 27,918
Other liabilities 6,393 561
Total liabilities 66,652 28,479
Commitments and contingencies (Note 10)
Stockholders’ equity:    
Preferred stock, par value of $0.001 per share—25,000,000 shares authorized; nil outstanding as of December 31, 2016 and 2015
Common stock, par value of $0.001 per share—250,000,000 shares authorized; 41,240,230 and 38,882,394 shares issued and outstanding as of December 31, 2016 and 2015 41 39
Additional paid-in capital 1,003,561 816,578
Accumulated other comprehensive income (loss) 905 (868)
Accumulated deficit (530,533) (284,659)
Total stockholders’ equity 473,974 531,090
Total liabilities and stockholders’ equity $ 540,626 $ 559,569