Condensed Consolidated Unaudited Statements of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Condensed Consolidated Unaudited Statements of Shareholders’ Equity
Dividends on common stock	$ 0.18	$ 0.18	$ 5.36	$ 0.64