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Common Stock and Other Equity Related Transactions - Additional Information (Detail) - $ / shares | Apr. 08, 2016 | Mar. 31, 2016
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6.75% Series C Cumulative Redeemable Perpetual Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred stock dividends paid (usd per share) |  | $ 0.421875
Subsequent Event [Member] |  |
Class of Stock [Line Items] |  |
Common Stock dividends paid (usd per share) | $ 0.425 |

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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 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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