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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Equity - Cash Dividends (Details) - $ / shares	Nov. 02, 2018	Sep. 07, 2018	Jun. 14, 2018	Feb. 15, 2018	Oct. 27, 2017	Sep. 08, 2017	Jun. 22, 2017	Feb. 16, 2017
Dividends Payable [Line Items]
Cash dividends declared per common share (in dollars per share)		$ 0.96	$ 0.96	$ 0.96	$ 0.71	$ 0.64	$ 0.64	$ 0.64
Subsequent Event
Dividends Payable [Line Items]
Cash dividends declared per common share (in dollars per share)	$ 1.07