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Subsequent Events-Additional Information (Table) (Details) - Jun. 30, 2015 - USD ($) $ / shares in Units, $ in Thousands	Total
Common Stock [Member]
Subsequent Event [Line Items]
Dividends payable, per share	$ 0.29
Dividend, declaration date	Jul. 02, 2015
Date of payment of dividends	Aug. 05, 2015
Dividends date of record	Jul. 22, 2015
Preferred stock series B dividends declared [Member]
Subsequent Event [Line Items]
Dividends payable, per share	$ 0.476563
Dividends Payable	$ 953
Dividend, declaration date	Jul. 02, 2015
Dividends date of record	Jul. 14, 2015
Preferred stock series C dividends declared [Member]
Subsequent Event [Line Items]
Dividends payable, per share	$ 0.531250
Dividends Payable	$ 2,125
Dividend, declaration date	Jul. 02, 2015
Dividends date of record	Jul. 14, 2015
Preferred stock series D dividends declared [Member]
Subsequent Event [Line Items]
Dividends payable, per share	$ 0.376736
Dividends Payable	$ 1,507
Dividend, declaration date	Jul. 02, 2015
Dividends date of record	Jul. 14, 2015

X

- 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

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- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

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-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



-SubTopic 10



-Section 50



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- Definition

Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 942



-SubTopic 210



-Section S99



-Paragraph 1



-Subparagraph (SX 210.9-03.15(5))



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Date the dividend to be paid was declared, in CCYY-MM-DD format.

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-Name Accounting Standards Codification



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-Section 50



-Paragraph 3



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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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