Share-Based Compensation (Stock Option Plans) (Details) - USD ($)	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Options
Outstanding, beginning of year (in shares)	872,989
Granted during the period (in shares)	119,132
Exercised during the period (in shares)	(62,701)
Canceled, forfeited or expired during the period (in shares)	(32,300)
Outstanding, end of year (in shares)	897,120	872,989
Vested and expected to vest at June 30, 2018 (in shares)	895,187
Exercisable, end of year (in shares)	685,554
Weighted- Average Exercise Price
Outstanding, beginning of year, Weighted-Average Exercise Price (in dollars per share)	$ 37.63
Granted during the period, Weighted-Average Exercise Price (in dollars per share)	34.27
Exercised during the period, Weighted-Average Exercise Price (in dollars per share)	35.72
Canceled, forfeited, or expired during the period, Weighted-Average Exercise Price (in dollars per share)	37.17
Outstanding, end of year, Weighted-Average Exercise Price (in dollars per share)	37.33	$ 37.63
Vested and expected to vest, Weighted-Average Exercise Price (in dollars per share)	37.34
Exercisable, end of year, Weighted-Average Exercise Price (in dollars per share)	$ 37.84
Outstanding, end of year, Weighted-Average Remaining Contractual Life (years)	5 years 11 months 12 days
Vested and expected to vest, Weighted-Average Remaining Contractual Life (years)	5 years 11 months 10 days
Exercisable, end of year, Weighted-Average Remaining Contractual Life (years)	5 years 25 days
Outstanding, end of year, Aggregate Intrinsic Value	$ 3,089,365
Vested and expected to vest, Aggregate Intrinsic Value	3,078,179
Exercisable, end of year, Aggregate Intrinsic Value	$ 2,113,769
Weighted Average Grant Date Fair- Value
Granted, weighted-average grant date fair value (in dollars per share)	$ 10.60	11.26	$ 9.53
Unvested Shares [Member]
Options
Granted during the period (in shares)	119,132
Weighted- Average Exercise Price
Outstanding, beginning of year, Weighted-Average Exercise Price (in dollars per share)	$ 38.48
Granted during the period, Weighted-Average Exercise Price (in dollars per share)	34.27
Exercised during the period, Weighted-Average Exercise Price (in dollars per share)	39.20
Outstanding, end of year, Weighted-Average Exercise Price (in dollars per share)	$ 35.69	$ 38.48
Options
Nonvested, beginning of year (in shares)	215,970
Vested during period (in shares)	(123,536)
Nonvested, end of year (in shares)	211,566	215,970
Weighted Average Grant Date Fair- Value
Unvested, beginning of year, weighted-average grant date fair value (in dollars per share)	$ 10.39
Granted, weighted-average grant date fair value (in dollars per share)	10.60
Vested during period, weighted-average grant date fair value (in dollars per share)	10.33
Unvested, end of period, weighted-average grant date fair value (in dollars per share)	$ 10.54	$ 10.39