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v3.3.0.814

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2015 | Sep. 30, 2014
Cash flows from operating activities: |  |
Net loss | $ (32,678) | $ (18,702)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |
Depreciation and amortization | 6,784 | 7,337
Stock-based compensation | 13,246 | 8,314
Gain on settlement of contractual liability | 0 | (6,993)
Provision for doubtful accounts and sales allowance | 1,575 | 52
Other non cash items | 14 | (31)
Changes in operating assets and liabilities: |  |
Accounts receivable, net | 11,223 | (4,771)
Inventory | 922 | (6,276)
Prepaid expenses and other assets | (97) | (3,303)
Accounts payable | (1,086) | 4,109
Accrued liabilities | (1,510) | 4,102
Accrued litigation expenses | 18 | (6,832)
Deferred revenue | 9,118 | 9,670
Other | 104 | (197)
Net cash provided by (used in) operating activities | 7,633 | (13,521)
Cash flows from investing activities: |  |
Purchases of property and equipment | (2,558) | (5,380)
Net cash used in investing activities | (2,558) | (5,380)
Cash flows from financing activities: |  |
Proceeds from issuance of common stock under employee equity incentive plans, net of repurchases | 3,238 | 4,399
Proceeds from initial public offering, net of offering costs | 0 | 121,037
Principal payments on revolving credit facility | 0 | (20,000)
Other | 306 | (229)
Net cash provided by financing activities | 3,544 | 105,207
Net increase in cash and cash equivalents | 8,619 | 86,306
Cash and cash equivalents—beginning of period | 91,905 |
Cash and cash equivalents—end of period | 100,524 | 107,099
Supplemental Disclosure of Non-Cash Investing and Financing Activities: |  |
Inventory transfers to property and equipment | 2,213 | 4,072
Vesting of early exercised stock options | 366 | 556
Accretion of Series D redeemable convertible preferred stock | $ 0 | $ 1,150

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