Dividends (Details) - $ / shares		3 Months Ended		9 Months Ended
	Jan. 17, 2017	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Dividends Payable [Line Items]
Cash dividends declared on common stock (in dollars per share)		$ 0.0950	$ 0.0925	$ 0.2850	$ 0.2775
2017 Annual Dividend [Member]
Dividends Payable [Line Items]
Cash dividends declared on common stock (in dollars per share)	$ 0.38
2017 Q2 Dividend [Member]
Dividends Payable [Line Items]
Dividends payable, date declared				Jan. 17, 2017
Cash dividends declared on common stock (in dollars per share)	$ 0.095
Dividends payable, date of record				Feb. 15, 2017
Dividends payable, date paid				Feb. 28, 2017