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Common Stock and Other Equity Related Transactions - Additional Information (Detail) (USD $) | 3 Months Ended
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Mar. 31, 2013
Common Stock |
Class of Stock [Line Items] |
Dividends Payable, Date to be Paid | Apr. 12, 2013
Common Stock, Dividends, Per Share, Cash Paid | $ 0.50
Dividends Payable, Date of Record | Mar. 28, 2013
Cumulative Series C Six Point Seven Five Percent Redeemable Perpetual Preferred Stock [Member] |
Class of Stock [Line Items] |
Dividends Payable, Date to be Paid | Apr. 01, 2013
Preferred Stock, Dividends, Per Share, Cash Paid | $ 0.421875
Dividends Payable, Date of Record | Mar. 21, 2013

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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=6959260&loc=d3e187085-122770 + Details
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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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- Definition Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format. + References No definition available. + 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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