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Shareholders' Equity (Schedule Of Dividends) (Details) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Shareholders Equity Disclosure [Line Items] |  |  |  |
Common stock | $ 0.050 | $ 0.050 | $ 0.100 | $ 0.100
Series A [Member] |  |  |  |
Shareholders Equity Disclosure [Line Items] |  |  |  |
Cumulative Redeemable Preferred Stock |  |  |  | $ 0.555
Dividend rate percentage |  |  | 8.875% |
Series B [Member] |  |  |  |
Shareholders Equity Disclosure [Line Items] |  |  |  |
Cumulative Redeemable Preferred Stock | $ 0.453 | $ 0.453 | $ 0.906 | $ 0.906
Dividend rate percentage |  |  | 7.25% |

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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