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		9 Months Ended
Subsequent Events (Details) - $ / shares	Jul. 31, 2020	Mar. 17, 2020	Dec. 20, 2019	Jul. 05, 2020	Jul. 07, 2019	Jul. 05, 2020	Jul. 07, 2019
Subsequent Event [Line Items]
Cash dividend (in USD per share)		$ 0.40	$ 0.40	$ 0	$ 0.40	$ 0.80	$ 1.20
Subsequent Event
Subsequent Event [Line Items]
Cash dividend (in USD per share)	$ 0.40