Aggregate dividends paid 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_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Common Stock and Other Equity Related Transactions - Common Stockholders Distribution Activity (Details) - $ / shares	Apr. 12, 2019	Jan. 11, 2019	Oct. 12, 2018	Jul. 13, 2018	Apr. 13, 2018
Class of Stock [Line Items]
Common stock, dividends paid (usd per share)		$ 0.5500	$ 0.5500	$ 0.5500	$ 0.550
Subsequent Event
Class of Stock [Line Items]
Common stock, dividends paid (usd per share)	$ 0.6125