Stock-Based Compensation (Restricted Stock Activity) (Details) (Restricted Stocks [Member], USD $)	6 Months Ended
	Dec. 31, 2012
Restricted Stocks [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Unvested restricted stock at beginning of period	62,000
Number of Shares, Granted	7,000
Number of Shares, Vested	(7,000)
Number of Shares, Forfeited	(1,000)
Number of Shares, Unvested restricted stock at end of period	61,000
Weighted Average Grant Date Fair Value, Unvested restricted stock at beginning of period	$ 63.25
Weighted Average Grant Date Fair Value, Granted	$ 73.29
Weighted Average Grant Date Fair Value, Vested	$ 65.97
Weighted Average Grant Date Fair Value, Forfeited	$ 61.01
Weighted Average Grant Date Fair Value, Unvested restricted stock at end of period	$ 64.05