v3.3.1.900

Tax Treatment of Distributions (Details 1) - $ / shares | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 31, 2012 | Mar. 31, 2012 | Dec. 31, 2012 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Capital gains, federal statutory tax rate |  |  |  |  |  |  | 20.00% |  | 25.00% |
Common Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Dividends paid per common share |  |  |  | $ 1.400 | $ 1.400 |  | $ 1.400 |  | $ 1.400 |
Common Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 100.00% |  | 100.00% |  | 100.00% |
Series G Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred stock, dividend rate |  |  | 6.875% |  | 6.875% |  |  |  | 6.875% |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 1.719 |  | $ 1.719 |  | $ 1.719 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 100.00% |  | 100.00% |  | 100.00% |
Series H Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred stock, dividend rate |  | 6.375% |  |  | 6.375% |  |  |  | 6.375% |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 1.594 |  | $ 1.594 |  | $ 1.594 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 100.00% |  | 100.00% |  | 100.00% |
Series E Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.000 |  | $ 0.000 |  | $ 0.818 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.00% |  | 0.00% |  | 100.00% |
Series F Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.000 |  | $ 0.000 |  | $ 0.786 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.00% |  | 0.00% |  | 100.00% |
Tax Treatment, Ordinary Income | Common Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Dividends paid per common share |  |  |  |  | $ 0.992 |  | $ 0.998 |  | $ 0.756 |
Common Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 70.86% |  | 71.29% |  | 54.00% |
Tax Treatment, Ordinary Income | Series G Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 1.218 |  | $ 1.711 |  | $ 1.668 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 70.86% |  | 99.54% |  | 97.03% |
Tax Treatment, Ordinary Income | Series H Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 1.129 |  | $ 1.587 |  | $ 1.546 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 70.86% |  | 99.56% |  | 96.99% |
Tax Treatment, Ordinary Income | Series E Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.000 |  | $ 0.000 |  | $ 0.818 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.00% |  | 0.00% |  | 100.00% |
Tax Treatment, Ordinary Income | Series F Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.000 |  | $ 0.000 |  | $ 0.786 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.00% |  | 0.00% |  | 100.00% |
Tax Treatment, Qualified Dividend | Common Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Dividends paid per common share |  |  |  |  | $ 0.002 |  | $ 0.002 |  | $ 0.003 |
Common Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.13% |  | 0.14% |  | 0.21% |
Tax Treatment, Qualified Dividend | Series G Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.002 |  | $ 0.003 |  | $ 0.006 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.13% |  | 0.17% |  | 0.35% |
Tax Treatment, Qualified Dividend | Series H Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.002 |  | $ 0.003 |  | $ 0.006 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.13% |  | 0.19% |  | 0.38% |
Tax Treatment, Return of Capital | Common Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Dividends paid per common share |  |  |  |  | $ 0.000 |  | $ 0.398 |  | $ 0.620 |
Common Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.00% |  | 28.43% |  | 44.29% |
Tax Treatment, Capital Gains | Common Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Dividends paid per common share |  |  |  |  | $ 0.051 |  | $ 0.002 | [1] | $ 0.000 | [1]
Common Stock, Dividends, Per Share, Cash Paid, Percentage | [1] |  |  |  | 3.65% |  | 0.14% |  | 0.00% |
Tax Treatment, Capital Gains | Series G Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.063 |  | $ 0.005 | [2] | $ 0.000 | [2]
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage | [2] |  |  |  | 3.65% |  | 0.29% |  | 0.00% |
Tax Treatment, Capital Gains | Series H Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.059 |  | $ 0.004 |  | $ 0.000 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 3.65% | [2] | 0.25% |  | 0.00% |
Tax Treatment, Capital Gains | Series E Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.000 |  | $ 0.000 |  | $ 0.000 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.00% |  | 0.00% |  | 0.00% |
Tax Treatment, Capital Gains | Series F Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.000 |  | $ 0.000 |  | $ 0.000 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.00% |  | 0.00% |  | 0.00% |
Tax Treatment, Unrecaptured Section 1250 Gains | Common Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Dividends paid per common share |  |  |  |  | $ 0.355 |  | $ 0.000 |  | $ 0.021 |
Common Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 25.36% |  | 0.00% |  | 1.50% |
Tax Treatment, Unrecaptured Section 1250 Gains | Series G Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.436 |  | $ 0.000 |  | $ 0.045 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 25.36% |  | 0.00% |  | 2.62% |
Tax Treatment, Unrecaptured Section 1250 Gains | Series H Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.404 |  | $ 0.000 |  | $ 0.042 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 25.36% |  | 0.00% |  | 2.63% |
Tax Treatment, Unrecaptured Section 1250 Gains | Series E Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.000 |  | $ 0.000 |  | $ 0.000 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.00% |  | 0.00% |  | 0.00% |
Tax Treatment, Unrecaptured Section 1250 Gains | Series F Cumulative Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |
Income Tax Treatment of Dividends Paid [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividends, Per Share, Cash Paid |  |  |  |  | $ 0.000 |  | $ 0.000 |  | $ 0.000 |
Preferred Stock, Dividends, Per Share, Cash Paid, Percentage |  |  |  |  | 0.00% |  | 0.00% |  | 0.00% |
[1] | Capital gains are comprised entirely of 20% rate gains.
[2] | Capital gains are comprised entirely of 20%

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