Dividend (Details) - $ / shares							12 Months Ended
	Mar. 13, 2020	Jan. 15, 2020	Sep. 13, 2019	Jun. 14, 2019	Mar. 14, 2019	Jan. 22, 2019	Sep. 30, 2020	Sep. 30, 2019
Equity [Abstract]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.3	$ 0.6