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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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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Subsequent Events - Additional Information (Details) - $ / shares			3 Months Ended		9 Months Ended
	Nov. 14, 2016	Nov. 13, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Subsequent Event [Line Items]
Dividends declared per common share			$ 0.07	$ 1.24	$ 0.20	$ 1.37
Subsequent Event
Subsequent Event [Line Items]
Dividends declared date	Nov. 14, 2016
Subsequent Event \| Monthly Dividends Declared
Subsequent Event [Line Items]
Dividends declared per common share	$ 0.0225	$ 0.022
Subsequent Event \| Annual Dividends Declared
Subsequent Event [Line Items]
Dividends declared per common share	$ 0.270	$ 0.264