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v3.19.3

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Cash flows from operating activities: |  |
Net income | $ 40,496 | $ 13,596
Adjustments to reconcile net income to net cash from operating activities: |  |
Provision for doubtful accounts | 722 | 108
Reserve for product returns | (105) | 210
Provision for notes receivable | (3,319) | 0
Amortization on patents and tooling | 506 | 701
Amortization and depreciation | 15,833 | 16,154
Amortization of debt issuance costs | 81 | 81
Amortization of operating lease right-of-use assets | 4,296 |
Deferred income taxes | 1,502 | (9,108)
Stock-based compensation | 14,721 | 9,670
Gain on notes receivable | (6,931) | 0
Acquired in-process research and development | 850 | 0
Impairment of investment | 605 | 0
Disposal of property and equipment | 0 | 285
Changes in operating assets and liabilities: |  |
Accounts receivable | (16,004) | (15,145)
Inventory | 2,012 | (2,729)
Other current and non-current assets | (6,813) | (5,072)
Accounts payable, accrued expenses and other current liabilities | (22,959) | 28,472
Deferred revenue | (1,153) | (804)
Operating lease liabilities | (681) |
Other liabilities | 188 | (1,441)
Cash flows from operating activities | 23,847 | 34,978
Cash flows used in investing activities: |  |
Additions to property and equipment | (10,660) | (9,317)
Purchases of in-process research and development | (850) | 0
Issuances or purchases of notes receivable | (26,074) | 0
Receipt of payment on notes receivable | 31,695 | 0
Cash flows used in investing activities | (5,889) | (9,317)
Cash flows from financing activities: |  |
Repayments of credit facility | (3,000) | (3,000)
Repurchases of common stock | 0 | (1)
Issuances of common stock from equity-based plans | 3,304 | 5,254
Cash flows from financing activities | 304 | 2,253
Net increase in cash and cash equivalents | 18,262 | 27,914
Cash and cash equivalents at beginning of the period | 146,061 | 96,329
Cash and cash equivalents at end of the period | $ 164,323 | $ 124,243

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