v3.5.0.2
Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Cash flows from operating activities    
Net loss $ (17,180) $ (13,655)
Adjustments to reconcile net loss including non-controlling interests to net cash provided by operating activities:    
Depreciation and amortization of property and equipment 21,708 17,866
Amortization of intangible assets 1,727 1,766
Impairment loss 23 160
(Gain) loss on disposal of fixed assets (4) 5
Stock-based compensation 6,684 3,934
Change in fair value of contingent consideration 0 (114)
Change in deferred income taxes 256 207
Changes in operating assets and liabilities:    
Accounts receivable (4,691) (12,600)
Prepaid expenses and other assets 147 (1,275)
Accounts payable (1,199) 2,237
Accrued expenses and other liabilities 3,642 911
Deferred revenue 44,554 35,395
Net cash provided by operating activities 55,667 34,837
Cash flows from investing activities    
Proceeds from sales of marketable securities 0 1,614
Purchases of property and equipment (64,257) (33,306)
Proceeds from sales of property and equipment 0 8
Net cash used in investing activities (64,257) (31,684)
Cash flows from financing activities    
Proceeds from credit facility 5,000 15,000
Proceeds from exercise of stock options 1,784 1,028
Principal payments on debt (438) (5,438)
Debt issuance costs (124) 0
Payments of capital leases and notes payable (1,277) (188)
Payment of other acquisition related consideration 0 (17)
Payments of withholding tax on net issuance of restricted stock units (1,520) (1,354)
Payments to non-controlling interest (286) (500)
Net cash provided by financing activities 3,139 8,531
Effect of exchange rates on cash 24 (15)
Net (decrease) increase in cash and cash equivalents (5,427) 11,669
Cash and cash equivalents at beginning of period 14,718 8,849
Cash and cash equivalents at end of period 9,291 20,518
Supplemental disclosure of non-cash investing and financing activities    
Property and equipment costs in accounts payable, accrued expenses and other liabilities 22,011 33,202
Purchase of equipment and prepaid maintenance services under capital financing arrangements $ 3,067 $ 3,099