v3.5.0.2
Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Cash flows from operating activities    
Net loss $ (18,475) $ (23,333)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 7,060 5,288
Stock-based compensation expense 11,593 9,217
Changes in operating assets and liabilities:    
Increase in accounts receivable, net (19,999) (12,338)
Decrease (increase) in advance to clients 262 (875)
Increase in prepaid expenses and other current assets (507) (1,910)
Increase in accounts payable 212 2,037
Increase in accrued compensation and related benefits 386 2,443
Increase in accrued expenses and other liabilities 4,139 2,356
Increase in deferred revenue 421 1,912
Decrease (increase) in payments to clients 1,320 (854)
Increase in other assets and other liabilities, net (834) (6,810)
Other   250
Net cash used in operating activities (14,422) (22,617)
Cash flows from investing activities    
Purchases of property and equipment (3,665) (974)
Capitalized technology and content development cost expenditures (12,351) (9,113)
Other (142) (250)
Net cash used in investing activities (16,158) (10,337)
Cash flows from financing activities    
Proceeds from exercise of stock options 4,324 4,322
Proceeds from issuance of common stock, net of offering costs   117,463
Other (546) (436)
Net cash provided by financing activities 3,778 121,349
Net (decrease) increase in cash and cash equivalents (26,802) 88,395
Cash and cash equivalents, beginning of period 183,729 86,929
Cash and cash equivalents, end of period 156,927 175,324
Supplemental disclosure of non-cash investing and financing activities    
Accrued capital expenditures $ 2,250 $ 361