Declaration of Dividend Subsequent to December 31, 2013 (Details) (Subsequent Event [Member], USD $)	12 Months Ended
Dec. 31, 2013	Jan. 20, 2014
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends payable, amount per share		$ 0.15
Dividends payable, date declared	Jan. 20, 2014
Dividends payable, date of record	Feb. 10, 2014
Dividends payable, date to be paid	Mar. 03, 2014

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

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

+ 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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