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Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Nov. 30, 2013 | Nov. 30, 2012 | Nov. 30, 2011
Cash flows from operating activities: |  |  |
Net income | $ 74,907 | $ 47,444 | $ 59,629
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization of property and equipment | 10,345 | 9,305 | 8,832
Amortization of acquired intangibles and other | 4,090 | 21,660 | 26,246
Stock-based compensation | 21,399 | 28,233 | 25,999
Gain on sale of dispositions | (71,601) | (45,105) | 0
Impairment loss on assets held for sale | 0 | 8,601 | 0
Loss on sale of auction rate security | 380 | 270 | 0
Loss on disposal of property and equipment | 448 | 0 | 114
Asset impairment | 111 | 898 | 0
Deferred income taxes | 9,745 | (22) | 2,468
Tax benefit from stock plans | (484) | 171 | 6,165
Excess tax benefits from stock plans | (1,642) | (1,590) | (6,238)
Allowances for accounts receivable | 874 | 1,140 | 1,963
Changes in operating assets and liabilities: |  |  |
Accounts receivable | 5,672 | 14,373 | 8,053
Other assets | (9,035) | 1,547 | 2,709
Accounts payable and accrued liabilities | (15,152) | 7,484 | (24,679)
Income taxes payable and uncertain tax positions | (20,294) | 17,617 | 9,640
Deferred revenue | (5,183) | (7,911) | 5,393
Net cash flows from operating activities | 4,580 | 104,115 | 126,294
Cash flows from investing activities: |  |  |
Purchases of investments | (7,745) | (27,924) | (152,658)
Sales and maturities of investments | 28,753 | 74,065 | 84,441
Redemptions and sales of auction rate securities - available-for-sale | 25 | 8,955 | 6,300
Purchases of property and equipment | (4,226) | (7,735) | (17,047)
Capitalized software development costs | (836) | 0 | 0
Payments for acquisitions, net of cash acquired | (9,450) | 0 | (22,900)
Proceeds from divestitures, net | 111,120 | 46,590 | 0
Decrease (increase) in other noncurrent assets | 1,121 | 189 | (433)
Net cash flows from investing activities | 118,762 | 94,140 | (102,297)
Cash flows from financing activities: |  |  |
Proceeds from stock-based compensation plans | 54,430 | 29,208 | 49,672
Purchase of common stock related to withholding taxes from issuance of restricted stock units | (4,936) | (4,153) | (2,706)
Repurchase of common stock | (276,537) | (81,316) | (200,009)
Excess tax benefit from stock plans | 1,642 | 1,590 | 6,238
Payment of long-term debt | 0 | (357) | (388)
Payment of issuance costs for line of credit | 0 | 0 | (795)
Net cash flows from financing activities | (225,401) | (55,028) | (147,988)
Effect of exchange rate changes on cash | (915) | (2,530) | (1,473)
Net (decrease) increase in cash and equivalents | (102,974) | 140,697 | (125,464)
Cash and equivalents, beginning of year | 301,792 | 161,095 | 286,559
Cash and equivalents, end of year | 198,818 | 301,792 | 161,095
Supplemental disclosure: |  |  |
Cash paid for income taxes, net of refunds of $4,453 in 2013, $1,987 in 2012 and $9,183 in 2011 | 69,939 | 15,337 | 9,545
Non-cash financing activity: |  |  |
Total fair value of restricted stock awards, restricted stock units and deferred stock units on date vested | 16,758 | 13,886 | 9,160
Unsettled repurchases of common stock | $ 0 | $ 7,068 | $ 0

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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 Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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=6943989&loc=d3e3602-108585 + Details
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- Definition The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + 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 (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tax benefits realized from the exercise of stock options resulting in reductions in the entity's income taxes, which increases net cash provided by operating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6576910&loc=d3e11283-113907 + Details
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