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

Subsequent Events (Details) - $ / shares									3 Months Ended		6 Months Ended
Subsequent Events (Details) - $ / shares	Jul. 31, 2020	May 01, 2020	Feb. 21, 2020	Oct. 31, 2019	Aug. 02, 2019	May 03, 2019	Feb. 26, 2019	Nov. 02, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cash Dividend
Cash dividend declared (in dollars per share)		$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.12	$ 0.12
Subsequent Events
Cash Dividend
Cash dividend declared (in dollars per share)	$ 0.06