Share-Based Compensation (Restricted Stock Granted) (Details) (Restricted Stock [Member], USD $)	12 Months Ended
	Jun. 30, 2013
Shares granted	119,676
Grant date fair value	$ 29.81
Certain Employees Based on Promotions, Granted May 1, 2012 [Member]
Shares granted	2,750
Date granted	Aug. 21, 2012
Grant date fair value	$ 29.87
Vesting period	3 years
Certain Employees, Granted June 18, 2012 [Member]
Shares granted	92,040
Date granted	Dec. 07, 2012
Grant date fair value	$ 29.80
Vesting period	3 years
Certain Employees, Granted December 2, 2011 [Member]
Shares granted	10,886
Date granted	Aug. 21, 2012
Grant date fair value	$ 29.87
Vesting period	2 years 3 months 18 days
Non-Employee Directors [Member]
Shares granted	14,000	[1]
Date granted	Dec. 07, 2012	[1]
Grant date fair value	$ 29.80	[1]
Vesting period	6 months

[1] Per the Amended and Restated Director’s Equity Compensation Plan, non-employee directors will receive annual awards of restricted stock, as opposed to stock options. The number of shares of restricted stock to be granted will be established from time to time by the Board of Directors. Currently, the number of shares of restricted stock awarded to each non-employee director will be determined by dividing $80,000 by the fair market value of the common stock on the date of grant. These awards will generally vest in full on the day that is six months after the date of grant or upon the earlier occurrence of (i) the director’s termination of service as a director by reason of death, disability or retirement, or (ii) a change in control by the Company. The compensation expense associated with these awards will be recognized on a pro-rata basis over this period.