Equity Items - Additional Information (Details) - $ / shares	3 Months Ended						6 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2020
Equity [Abstract]
Common Stock, Dividends, Per Share, Paid	$ 0.275	$ 0.275	$ 0.275	$ 0.275	$ 0.25	$ 0.25	$ 0.550
Percentage of increase in cash dividend	10.00%