Nature of Operations and Summary of Significant Accounting Policies Dividends Paid Per Share (Details) - $ / shares	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Equity [Abstract]
Dividends declared per share	$ 0.28	$ 0.25	$ 0.78	$ 0.69