v2.4.0.8

Subsequent Events (Details) (USD $)	3 Months Ended		0 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Feb. 18, 2014 Dividend Declared [Member]	Feb. 18, 2014 Dividend Declared [Member] Preference Shares - Series A [Member]	Feb. 18, 2014 Dividend Declared [Member] Preference Shares - Series B [Member]	May 06, 2014 Subsequent Event [Member] Dividend Declared [Member]	May 06, 2014 Subsequent Event [Member] Dividend Declared [Member] Preference Shares - Series A [Member]	May 06, 2014 Subsequent Event [Member] Dividend Declared [Member] Preference Shares - Series B [Member]
Subsequent Event [Line Items]
Dividends declared per common share (in dollars per share)	$ 0.11	$ 0.09	$ 0.11			$ 0.11
Dividends declared per Preference share (in dollars per share)				$ 0.515625	$ 0.90625		$ 0.515625	$ 0.90625

X

- Definition

Aggregate dividends declared 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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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Aggregate dividends declared during the period for each share of preferred stock outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_PreferredStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration