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Shareholders' Equity (Schedule Of Dividends) (Details) (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2015 | Mar. 31, 2014
Class of Stock [Line Items] |  |
Common stock | $ 0.050 us-gaap_CommonStockDividendsPerShareCashPaid | $ 0.050 us-gaap_CommonStockDividendsPerShareCashPaid
Series B [Member] |  |
Class of Stock [Line Items] |  |
Cumulative Redeemable Preferred Stock | $ 0.453 us-gaap_PreferredStockDividendsPerShareCashPaid / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember | $ 0.453 us-gaap_PreferredStockDividendsPerShareCashPaid / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember
Dividend rate percentage | 7.25%us-gaap_PreferredStockDividendRatePercentage / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |

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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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- Definition Aggregate dividends paid during the period for each share of preferred stock outstanding. + References No definition available. + Details
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