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Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified | 9 Months Ended
--- | ---
Aug. 31, 2013 | Aug. 31, 2012
Cash flows from operating activities: |  |
Net income | $ 59,871 | $ 11,419
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization of property and equipment | 8,402 | 6,990
Amortization of acquired intangibles and other | 2,972 | 18,379
Stock-based compensation | 16,360 | 21,504
Gain on dispositions | (70,991) | 0
Asset impairment | 111 | 875
Deferred income taxes | 2,179 | 888
Tax (deficiency) benefit from stock plans | (532) | 563
Excess tax benefit from stock plans | (1,188) | (1,338)
Allowances for accounts receivable | (123) | 774
Changes in operating assets and liabilities: |  |
Accounts receivable | 19,967 | 30,250
Other assets | (5,690) | (5,412)
Accounts payable and accrued liabilities | (17,416) | 4,201
Income taxes payable and uncertain tax positions | (22,762) | (2,760)
Deferred revenue | (4,439) | (10,619)
Net cash flows (used in) from operating activities | (13,279) | 75,714
Cash flows from investing activities: |  |
Purchases of investments | 0 | (27,924)
Sales and maturities of investments | 25,685 | 70,185
Redemptions and sales of auction rate securities | 25 | 2,925
Purchases of property and equipment | (2,989) | (6,606)
Payments for acquisitions, net of cash acquired | (9,450) | 0
Proceeds from divestitures, net | 111,120 | 0
Increase in other noncurrent assets | 835 | 247
Net cash flows from investing activities | 125,226 | 38,827
Cash flows from financing activities: |  |
Proceeds from stock-based compensation plans | 49,109 | 24,284
Purchases of common stock related to withholding taxes from the issuance of restricted stock units | (2,823) | (2,681)
Repurchases of common stock | (241,184) | 0
Excess tax benefit from stock plans | 1,188 | 1,338
Payment of long-term debt | 0 | (357)
Net cash flows (used in) from financing activities | (193,710) | 22,584
Effect of exchange rate changes on cash | (4,687) | (3,822)
Net (decrease) increase in cash and cash equivalents | (86,450) | 133,303
Cash and cash equivalents, beginning of period | 301,792 | 161,095
Cash and cash equivalents, end of period | 215,342 | 294,398
Supplemental disclosure: |  |
Cash paid for income taxes, net of refunds of $4,324 in 2013 and $632 in 2012 | 66,596 | 13,912
Non-cash financing activities: |  |
Total fair value of restricted stock awards, restricted stock units and deferred stock units on date vested | 9,890 | 8,669
Unsettled repurchases of common stock | $ 3,301 | $ 0

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