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

Reference 1: 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

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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

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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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Describes the event or transaction that occurred between the balance sheet date and the date the financial statements are issued or available to be issued.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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Subsequent Events (Details Textuals) - $ / shares			3 Months Ended
Subsequent Events (Details Textuals) - $ / shares	May. 16, 2016	May. 02, 2016	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Subsequent Event [Line Items]
Dividends declared per share (usd per share)			$ 0.50	$ 0.50	$ 0.5
Subsequent Event, Description			0
Subsequent Event
Subsequent Event [Line Items]
Dividends Payable, Date Declared		May 02, 2016
Dividends Payable, Date of Record	May 16, 2016
Dividend Declared [Member] \| Subsequent Event
Subsequent Event [Line Items]
Dividends declared per share (usd per share)		$ 0.5