v3.8.0.1

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Cash flows from operating activities |  |  |
Net loss | $ (29,423) | $ (20,684) | $ (26,733)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 19,624 | 9,750 | 7,220
Stock-based compensation expense | 21,930 | 15,823 | 12,499
Charge related to execution of new lease agreement |  |  | 884
Changes in operating assets and liabilities: |  |  |
Increase in accounts receivable, net | (5,634) | (6,885) | (625)
Decrease (increase) in prepaid expenses and other assets | 1,549 | (1,090) | (4,876)
Increase (decrease) in accounts payable and accrued expenses | 3,504 | (2,459) | 2,366
Increase in accrued compensation and related benefits | 2,504 | 3,086 | 4,317
Increase in deferred revenue | 1,661 | 528 | 703
(Increase) decrease in payments to university clients | (13,239) | 2,234 | (3,664)
Increase (decrease) in other liabilities, net | 4,763 | 4,907 | (1,608)
Other | 867 |  | 250
Net cash provided by (used in) operating activities | 8,106 | 5,210 | (9,267)
Cash flows from investing activities |  |  |
Purchase of a business, net of cash acquired | (97,102) |  |
Purchases of property and equipment | (27,316) | (7,648) | (1,256)
Additions of amortizable intangible assets | (23,823) | (16,728) | (12,358)
Advances made to university clients | (1,950) |  |
Advances repaid by university clients | 817 |  |
Other |  | (142) | (2,331)
Net cash used in investing activities | (149,374) | (24,518) | (15,945)
Cash flows from financing activities |  |  |
Proceeds from issuance of common stock, net of offering costs | 189,463 |  | 117,112
Proceeds from exercise of stock options | 6,615 | 4,859 | 5,336
Proceeds from debt | 3,500 |  |
Payments on debt | (1,517) |  |
Tax withholding payments associated with settlement of restricted stock units | (1,309) | (378) | (436)
Other |  | (172) |
Net cash provided by financing activities | 196,752 | 4,309 | 122,012
Effect of exchange rate changes on cash | (844) |  |
Net increase (decrease) in cash and cash equivalents | 54,640 | (14,999) | 96,800
Cash and cash equivalents, beginning of period | 168,730 | 183,729 | 86,929
Cash and cash equivalents, end of period | $ 223,370 | $ 168,730 | $ 183,729

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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3574-108585 + Details
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