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v3.8.0.1

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016
Cash flows from operating activities: |  |
Net income | $ 23,749 | $ 24,462
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization | 3,224 | 2,777
Stock-based compensation expense | 3,940 | 2,276
Deferred income taxes | 943 | (571)
Provision for doubtful accounts | (1) | 52
Provision for inventory | 609 | 259
Changes in operating assets and liabilities: |  |
Accounts receivable | 4,388 | (104)
Inventories | (4,668) | (3,229)
Prepaid expenses, other current and long-term assets | (922) | 355
Accounts payable | 2,030 | (5,390)
Accrued expenses and other current liabilities | 643 | 1,091
Income taxes | 645 | (3,496)
Other long-term liabilities | (749) | (104)
Net cash provided by operating activities | 33,831 | 18,378
Cash flows from investing activities: |  |
Proceeds from maturity of investments | 31,250 | 37,750
Purchase of investments | (36,500) | (32,250)
Purchase of property and equipment | (6,506) | (12,608)
Net cash used in investing activities | (11,756) | (7,108)
Cash flows from financing activities: |  |
Repurchases of common stock | 0 | (25,000)
Proceeds from exercise of equity awards | 310 | 988
Net cash provided by (used in) financing activities | 310 | (24,012)
Exchange rate impact on cash | 314 | 82
Increase (decrease) in cash and cash equivalents | 22,699 | (12,660)
Cash and cash equivalents at beginning of period | 104,261 | 110,707
Cash and cash equivalents at end of period | 126,960 | 98,047
Non-cash investing activities: |  |
Purchases of property and equipment included in accounts payable and accrued expenses | 1,208 | 474
Build-to-suit lease agreement | $ 0 | $ 1,825

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