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Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Nov. 30, 2011 | Nov. 30, 2010 | Nov. 30, 2009
Income tax benefit computed at the statutory U.S. federal income tax rate and income tax benefit (expense) provided in the consolidated statements of operations |  |  |
Income tax benefit computed at statutory rate | $ 63,397 | $ 26,729 | $ 108,914
Increase (decrease) resulting from |  |  |
State taxes, net of federal income tax benefit | 4,691 | 4,010 | 11,079
Reserve and deferred income | (1,161) | 1,204 | (11,075)
Capitalized expenses | (3,589) |  |
Basis in joint ventures | 4,401 | 13,729 | (3,336)
NOLs reconciliation | 715 | (24,749) | (36,941)
Recognition of federal tax benefits | 2,600 | 1,621 | 16,411
Tax credits | 5,477 | 5,384 | 203
Valuation allowance for deferred tax assets | (76,747) | (21,115) | 128,813
Other, net | 2,616 | 187 | (4,668)
Income tax benefit (expense) | 2,400 | 7,000 | 209,400
Reconciliation of the beginning and ending balances of the gross unrecognized benefits |  |  |
Balance at beginning of year | 11,308 | 11,024 | 18,332
Additions for tax positions related to prior years | 5 | 1,720 | 4,230
Reductions for tax positions related to prior years | 0 | (1,183) | (270)
Reductions related to settlement | (264) |  |
Reductions due to lapse of statute of limitations | (2,476) | 0 | (1,277)
Reductions due to resolution of federal and state audits | (6,674) | (253) | (9,991)
Balance at the end of year | $ 1,899 | $ 11,308 | $ 11,024

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