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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 01, 2017 | Sep. 02, 2016
Cash flows from operating activities: |  |  |
Net income | $ 1,192,405 |  | $ 769,169
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation, amortization and accretion | 244,763 |  | 249,675
Stock-based compensation | 331,401 |  | 262,382
Deferred income taxes | 47,859 |  | 44,164
Unrealized losses (gains) on investments, net | (3,243) |  | 3,916
Excess tax benefits from stock-based compensation | 0 |  | (69,269)
Other non-cash items | 2,606 |  | (124)
Changes in operating assets and liabilities, net of acquired assets and assumed liabilities: |  |  |
Trade receivables, net | 26,461 |  | (57,033)
Prepaid expenses and other current assets | 31,824 |  | (86,350)
Trade payables | (68,397) |  | (10,861)
Accrued expenses | 81,624 |  | (5,540)
Income taxes payable | 6,880 |  | 95,923
Deferred revenue | 185,450 |  | 308,075
Net cash provided by operating activities | 2,079,633 |  | 1,504,127
Cash flows from investing activities: |  |  |
Purchases of short-term investments | (1,419,411) |  | (1,813,509)
Maturities of short-term investments | 601,130 |  | 557,769
Proceeds from sales of short-term investments | 978,737 |  | 698,486
Acquisitions, net of cash acquired | (459,626) |  | (48,427)
Purchases of property and equipment | (140,438) |  | (155,172)
Purchases of long-term investments and other assets | (25,669) |  | (56,413)
Proceeds from sale of long-term investments and other assets | 2,034 |  | 331
Net cash used for investing activities | (463,243) |  | (816,935)
Cash flows from financing activities: |  |  |
Purchases of treasury stock | (800,000) |  | (775,000)
Proceeds from issuance of treasury stock | 157,682 |  | 139,823
Taxes paid related to net share settlement of equity awards | (220,580) |  | (224,243)
Excess tax benefits from stock-based compensation | 0 |  | 69,269
Repayment of capital lease obligations | (1,328) |  | (86)
Net cash used for financing activities | (864,226) |  | (790,237)
Effect of foreign currency exchange rates on cash and cash equivalents | 11,071 |  | (5,843)
Net increase (decrease) in cash and cash equivalents | 763,235 |  | (108,888)
Cash and cash equivalents at beginning of period | 1,011,315 | [1] | 876,560
Cash and cash equivalents at end of period | 1,774,550 |  | 767,672
Supplemental disclosures: |  |  |
Cash paid for income taxes, net of refunds | 211,343 |  | 108,508
Cash paid for interest | 59,769 |  | 58,182
Non-cash investing activities: |  |  |
Investment in Lease Receivable Applied to Building Purchase | 80,439 |  | 0
Issuance of common stock and stock awards assumed in business acquisitions | $ 10,348 |  | $ 0
[1] | The condensed consolidated balance sheet as of December 2, 2016 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.

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- Definition The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the issuance of an equity stock that has been previously reacquired by the entity. + References Reference 1: 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=98514028&loc=d3e3255-108585 + Details
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- Definition The cash outflow associated with security instruments that either represent a creditor or an ownership relationship with the holder of the investment security with a maturity of beyond one year or normal operating cycle, if longer. Includes repayments of (a) debt, (b) capital lease obligations, (c) mandatory redeemable capital securities, and (d) any combination of (a), (b), or (c). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + 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=98514028&loc=d3e3602-108585 + Details
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- References No definition available. + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for the period. + 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 (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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