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v3.8.0.1

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016
Cash flows from operating activities: |  |
Net income | $ 37,584 | $ 13,317
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization expense | 15,054 | 12,364
Bad debt expense | 353 | 152
Loss on disposal of property and equipment | 3 | 39
Stock-based compensation | 18,522 | 15,122
Amortization of premiums and accretion of discounts on investments | 1,155 | 617
Excess tax benefits from stock-based compensation | 7,880 | (4,832)
Deferred income taxes | (17,631) | 931
Changes in operating assets and liabilities: |  |
Accounts receivable | 317 | 263
Prepaid expenses and other assets | (405) | (1,196)
Accounts payable | (706) | (877)
Accrued liabilities | 747 | 6,763
Deferred revenues | 17,716 | 10,853
Other non-current liabilities | 1,190 | 1,188
Net cash provided by operating activities | 81,779 | 54,704
Cash flows from investing activities: |  |
Purchases of investments | (198,866) | (180,161)
Sales and maturities of investments | 148,025 | 133,708
Purchases of property and equipment | (26,612) | (18,809)
Purchase of business | (5,753) | 0
Net cash used in investing activities | (83,206) | (65,262)
Cash flows from financing activities: |  |
Proceeds from exercise of stock options | 22,778 | 12,529
Excess tax benefits from stock-based compensation | 0 | 4,832
Payments for taxes related to net share settlement of equity awards | (17,571) | (202)
Net cash provided by financing activities | 5,207 | 17,159
Net increase in cash and cash equivalents | 3,780 | 6,601
Cash and cash equivalents at beginning of period | 86,737 | 91,698
Cash and cash equivalents at end of period | 90,517 |
Supplemental cash flow disclosures: |  |
Purchases of property and equipment recorded in accounts payable and accrued liabilities | 1,371 | 2,606
Cash paid for income taxes | $ 1,083 | 785
Not yet received tenant allowance recorded in other assets, accrued liabilities and other non-current liabilities |  | $ 0

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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- References No definition available. + Details
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