XML 13 R2.htm IDEA: XBRL DOCUMENT v3.19.1
CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Current assets:    
Cash and cash equivalents $ 238,641 $ 220,128
Marketable securities 81,750 12,735
Accounts receivable 6,115 29,583
Prepaid expenses 8,309 6,406
Other current assets 218 272
Total current assets 335,033 269,124
Property, equipment and software, net 54,818 56,712
Other assets 24,787 6,294
Total assets 414,638 332,130
Current liabilities:    
Accounts payable 925 4,005
Accrued expenses 28,852 33,021
Deferred revenue 18,085 21,721
Deferred rent 0 1,018
Lease liabilities 3,734 0
Other liabilities 175 175
Total current liabilities 51,771 59,940
Deferred revenue, net of current portion 17,207 19,001
Lease liabilities, net of current portion 25,043 0
Deferred rent, net of current portion 0 10,312
Total liabilities 94,021 89,253
Stockholders' equity:    
Common stock, $0.01 par value -- 125,000,000 shares authorized, 48,805,008 and 42,353,301 shares outstanding at March 31, 2019 and December 31, 2018, respectively 488 424
Additional paid-in capital 855,417 732,727
Accumulated other comprehensive loss 0 (3)
Accumulated deficit (535,288) (490,271)
Total stockholders' equity 320,617 242,877
Total liabilities and stockholders' equity $ 414,638 $ 332,130