Condensed Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2020
Common Stock
Common stock, par value (in usd per share)	$ 1	$ 1
Common stock, dividends, per share, cash paid (in usd per share)	0.575
Class B Common Stock
Common stock, par value (in usd per share)	1	$ 1
Common stock, dividends, per share, cash paid (in usd per share)	0.575
Series A Preferred Stock
Preferred stock, dividends, per share, cash paid (in usd per share)	$ 22.19