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Stockholders' Equity - Stockholders' Equity Preferred Stock (Details) (Preferred Stock [Member], USD $) | 6 Months Ended
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Jun. 30, 2013
Dividend One [Member] |
Class of Stock [Line Items] |
Declaration Date | Mar. 15, 2013
Record Date | Mar. 28, 2013
Payment Date | Apr. 15, 2013
Dividend Amount (in dollars per share) | $ 0.5391
Dividend Two [Member] |
Class of Stock [Line Items] |
Declaration Date | Jun. 12, 2013
Record Date | Jun. 28, 2013
Payment Date | Jul. 15, 2013
Dividend Amount (in dollars per share) | $ 0.5391

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- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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