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=6959260&loc=d3e187085-122770

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- Definition

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

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- Definition

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

+ References

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- Definition

Date the dividend to be paid was declared, 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 32

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

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No definition available.

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Subsequent Events (Details) (USD $)	0 Months Ended
Subsequent Events (Details) (USD $)	Feb. 08, 2013	Apr. 02, 2013 Subsequent Event [Member]	Apr. 26, 2013 Dividend Declared [Member]	Apr. 16, 2013 Dividend Paid [Member]	Jul. 01, 2013 Scenario, Forecast [Member] Subsequent Event [Member]	Jul. 15, 2013 Scenario, Forecast [Member] Dividend Paid [Member]	Apr. 26, 2013 Scenario, Forecast [Member] Dividend Paid [Member]
Subsequent Event [Line Items]
Dividends Payable, Date Declared	Feb. 08, 2013		Apr. 26, 2013
Dividends declared, per share	$ 0.185		$ 0.185
Dividends Payable, Date to be Paid				Apr. 16, 2013		Jul. 15, 2013
Dividends Payable, Date of Record		Apr. 02, 2013			Jul. 01, 2013
Cash dividends paid per share				$ 0.185			$ 10,800,000