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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2011
Income Taxes [Abstract] |
Reconciliation Of Net Income To REIT Taxable Income |
|  |  | September 30, |  |  |  | September 30, |  |  |  | September 30, |
|  | Year Ended December 31, |
(in thousands) |  | 2011 |  |  | 2010 |  |  | 2009 |
Net income (loss) |  | $ | 59,961 |  |  | $ | 31,142 |  |  | $ | (44,203 | )
Less (income) loss attributable to noncontrolling interests |  |  | (3,582 | ) |  |  | (926 | ) |  |  | 403 |
Less income allocated to perpetual preferred units |  |  | (7,000 | ) |  |  | (7,000 | ) |  |  | (7,000 | )
Net income (loss) attributable to common shareholders |  |  | 49,379 |  |  |  | 23,216 |  |  |  | (50,800 | )
Loss of taxable REIT subsidiaries included above |  |  | 539 |  |  |  | 2,056 |  |  |  | 25,124 |
Net income (loss) from REIT operations |  |  | 49,918 |  |  |  | 25,272 |  |  |  | (25,676 | )
Book depreciation and amortization, including discontinued operations |  |  | 188,042 |  |  |  | 179,662 |  |  |  | 178,607 |
Tax depreciation and amortization |  |  | (155,636 | ) |  |  | (158,134 | ) |  |  | (164,639 | )
Book/tax difference on gains/losses from capital transactions |  |  | (4,315 | ) |  |  | 37,798 |  |  |  | (7,059 | )
Book/tax difference on impairment associated with land development activities |  |  | — |  |  |  | — |  |  |  | 62,397 |
Other book/tax differences, net |  |  | 8,205 |  |  |  | (10,565 | ) |  |  | (24,188 | )
REIT taxable income |  |  | 86,214 |  |  |  | 74,033 |  |  |  | 19,442 |
Dividends paid deduction |  |  | (143,657 | ) |  |  | (124,999 | ) |  |  | (128,507 | )
Dividends paid in excess of taxable income |  | $ | (57,443 | ) |  | $ | (50,966 | ) |  | $ | (109,065 | )
Schedule Of Per Share Distributions Reported To Shareholders |
|  |  | September 30, |  |  |  | September 30, |  |  |  | September 30, |
|  | Year Ended December 31, |
|  | 2011 |  |  | 2010 |  |  | 2009 |
Common Share Distributions |  |  |  |  |  |  |  |  |  |  |  |
Ordinary income |  | $ | 1.08 |  |  | $ | 0.89 |  |  | $ | 1.74 |
Long-term capital gain |  |  | 0.13 |  |  |  | 0.20 |  |  |  | 0.25 |
Unrecaptured Sec. 1250 gain |  |  | 0.23 |  |  |  | 0.48 |  |  |  | 0.06 |
Return of capital |  |  | 0.52 |  |  |  | 0.23 |  |  |  | — |
Total |  | $ | 1.96 |  |  | $ | 1.80 |  |  | $ | 2.05 |
Percentage of distributions representing tax preference items |  |  | 2.83 | % |  |  | 3.91 | % |  |  | 3.94 | %

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- Definition A schedule that shows reconciliation of net income attributable to common stockholders to taxable net income. + References No definition available. + Details
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- Definition A schedule that shows summary of estimated percentage of tax component of common and preferred dividends declared and distributions during the period. + References No definition available. + Details
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