Restricted Stock Share Awards (Details) - Restricted Stock [Member] - $ / shares shares in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding, period start, number of shares	58	72	138
Granted, number of shares	17	22	12
Vested, number of shares	(38)	(24)	(71)
Forfeited, number of shares	(1)	(12)	(7)
Outstanding, period end, number of shares	36	58	72
Outstanding, period start, weighted average grant date fair value	$ 44.95	$ 34.28	$ 33.56
Granted, weighted average grant date fair value	87.27	66.31	57.77
Vested, weighted average grant date fair value	37.00	43.45	35.69
Forfeited, weighted average grant date fair value	65.52	23.82	46.39
Outstanding, period end, weighted average grant date fair value	$ 73.66	$ 44.95	$ 34.28