Share-Based Compensation (Stock Option Plans) (Details) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, beginning of year (in shares)	1,166,031
Options granted during period (in shares)	128,000
Exercised during the period (in shares)	(194,041)
Canceled, forfeited or expired during the period (in shares)	(1,825)
Outstanding, end of year (in shares)	1,098,165	1,166,031
Vested and expected to vest at June 30, 2015 (in shares)	1,096,239
Exercisable, end of year (in shares)	819,670
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding, beginning of year, Weighted-Average Exercise Price (in dollars per share)	$ 35.09
Granted during the period, Weighted-Average Exercise Price (in dollars per share)	38.15
Exercised during the period, Weighted-Average Exercise Price (in dollars per share)	29.04
Canceled, forfeited, or expired during the period, Weighted-Average Exercise Price (in dollars per share)	32.03
Outstanding, end of year, Weighted-Average Exercise Price (in dollars per share)	36.52	$ 35.09
Vested and expected to vest, Weighted-Average Exercise Price (in dollars per share)	36.51
Exercisable, end of year, Weighted-Average Exercise Price (in dollars per share)	$ 35.35
Outstanding, end of year, Weighted-Average Remaining Contractual Life (years)	5 years 4 months 7 days
Vested and expected to vest, Weighted-Average Remaining Contractual Life (years)	5 years 4 months 4 days
Exercisable, end of Year, Weighted-Average Remaining Contractual Life (years)	4 years 2 months 10 days
Outstanding, Aggregate Intrinsic Value	$ 2,123,342
Vested and expected to vest, Aggregate Intrinsic Value	2,123,244
Exercisable, end of Year, Aggregate Intrinsic Value	$ 2,120,598
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Granted, weighted-average grant date fair value (in dollars per share)	$ 9.53	10.51	$ 11.91
Unvested Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options granted during period (in shares)	128,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding, beginning of year, Weighted-Average Exercise Price (in dollars per share)	$ 39.98
Granted during the period, Weighted-Average Exercise Price (in dollars per share)	38.15
Exercised during the period, Weighted-Average Exercise Price (in dollars per share)	38.29
Canceled, forfeited, or expired during the period, Weighted-Average Exercise Price (in dollars per share)	0.00
Outstanding, end of year, Weighted-Average Exercise Price (in dollars per share)	$ 39.96	$ 39.98
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Nonvested, beginning of year (in shares)	286,580
Vested during period (in shares)	(136,085)
Canceled or forfeited during period (in shares)	0
Nonvested, end of year (in shares)	278,495	286,580
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Unvested, beginning of year, weighted-average grant date fair value (in dollars per share)	$ 10.91
Granted, weighted-average grant date fair value (in dollars per share)	9.53
Vested during period, weighted-average grant date fair value (in dollars per share)	10.93
Canceled or forfeited during period, weighted-average grant date fair value (in dollars per share)	0.00
Unvested, end of period, weighted-average grant date fair value (in dollars per share)	$ 10.27	$ 10.91