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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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

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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=98513485&loc=d3e4304-108586

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

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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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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.

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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	Oct. 31, 2017	Aug. 02, 2017	May 04, 2017	Feb. 09, 2017	Nov. 01, 2016	Aug. 02, 2016	May 05, 2016	Feb. 10, 2016	Oct. 05, 2017
Subsequent Event [Line Items]
Dividends declared date		Aug. 02, 2017	May 04, 2017	Feb. 09, 2017	Nov. 01, 2016	Aug. 02, 2016	May 05, 2016	Feb. 10, 2016
Dividend amount to be paid, per common share		$ 0.3850	$ 0.3750	$ 0.3650	$ 0.3550	$ 0.3450	$ 0.3350	$ 0.3250
Date dividend is payable		Sep. 01, 2017	Jun. 02, 2017	Mar. 09, 2017	Dec. 05, 2016	Sep. 01, 2016	Jun. 02, 2016	Mar. 10, 2016
Date shareholders must be on record for dividend		Aug. 14, 2017	May 19, 2017	Feb. 22, 2017	Nov. 18, 2016	Aug. 17, 2016	May 18, 2016	Feb. 23, 2016
Subsequent Event [Member]
Subsequent Event [Line Items]
Disposal Group, Including Discontinued Operation, Consideration									$ 90.0
Dividends declared date	Oct. 31, 2017
Dividend amount to be paid, per common share	$ 0.3950
Date dividend is payable	Dec. 05, 2017
Date shareholders must be on record for dividend	Nov. 17, 2017