Share-Based Compensation (Stock Options Outstanding) (Details)	12 Months Ended
	Jun. 30, 2018 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding, shares outstanding (in shares) | shares	897,120
Options outstanding, weighted average remaining contractual life (in years)	5 years 11 months 12 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 37.33
Options exercisable, number exercisable (in shares) | shares	685,554
Options exercisable, weighted average exercise price (in dollars per share)	$ 37.84
Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit	18.13
Range of exercise prices, upper limit	$ 22.27
Options outstanding, shares outstanding (in shares) | shares	2,800
Options outstanding, weighted average remaining contractual life (in years)	5 months 5 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 18.14
Options exercisable, number exercisable (in shares) | shares	2,800
Options exercisable, weighted average exercise price (in dollars per share)	$ 18.14
Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit	22.27
Range of exercise prices, upper limit	$ 26.38
Options outstanding, shares outstanding (in shares) | shares	25,000
Options outstanding, weighted average remaining contractual life (in years)	1 year 5 months 5 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 24.57
Options exercisable, number exercisable (in shares) | shares	25,000
Options exercisable, weighted average exercise price (in dollars per share)	$ 24.57
Range Three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit	26.38
Range of exercise prices, upper limit	$ 30.49
Options outstanding, shares outstanding (in shares) | shares	20,731
Options outstanding, weighted average remaining contractual life (in years)	4 years 5 months 10 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 29.80
Options exercisable, number exercisable (in shares) | shares	20,731
Options exercisable, weighted average exercise price (in dollars per share)	$ 29.80
Range Four [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit	30.49
Range of exercise prices, upper limit	$ 34.60
Options outstanding, shares outstanding (in shares) | shares	197,971
Options outstanding, weighted average remaining contractual life (in years)	7 years 1 month 30 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 34.21
Options exercisable, number exercisable (in shares) | shares	82,839
Options exercisable, weighted average exercise price (in dollars per share)	$ 34.27
Range Five [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit	34.60
Range of exercise prices, upper limit	$ 38.71
Options outstanding, shares outstanding (in shares) | shares	371,169
Options outstanding, weighted average remaining contractual life (in years)	5 years 7 months 30 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 37.04
Options exercisable, number exercisable (in shares) | shares	274,735
Options exercisable, weighted average exercise price (in dollars per share)	$ 36.87
Range Six [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit	38.71
Range of exercise prices, upper limit	$ 42.82
Options outstanding, shares outstanding (in shares) | shares	279,449
Options outstanding, weighted average remaining contractual life (in years)	6 years 7 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 41.83
Options exercisable, number exercisable (in shares) | shares	279,449
Options exercisable, weighted average exercise price (in dollars per share)	$ 41.83