Aggregate dividends paid during the period for each share of common stock outstanding.

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_
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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

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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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- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

No definition available.

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Subsequent Events (Narrative) (Details) (USD $)	0 Months Ended		3 Months Ended		0 Months Ended
Subsequent Events (Narrative) (Details) (USD $)	Jan. 07, 2015	Jan. 07, 2014	Mar. 31, 2015	Mar. 31, 2014	Apr. 07, 2015
Subsequent Event [Line Items]
Dividend paid to common stockholders			$ 0.29	$ 0.24
Dividends payable, date of record			Mar. 20, 2015
Dividends payable, date payable	Jan. 07, 2015	Jan. 07, 2014
Subsequent Event [Member]
Subsequent Event [Line Items]
Cash dividend per common share					$ 0.32
Dividends payable, date payable					Apr. 07, 2015