Stock-Based Compensation (Restricted Stock Activity) (Details) (Restricted Stock [Member], USD $)	6 Months Ended
	Dec. 31, 2011
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Unvested restricted stock at beginning of period	44,000
Number of Shares, Granted	7,000
Number of Shares, Vested	(8,000)
Number of Shares, Forfeited	0
Number of Shares, Unvested restricted stock at end of period	43,000
Weighted Average Grant Date Fair Value, Unvested restricted stock at beginning of period	$ 54.86
Weighted Average Grant Date Fair Value, Granted	$ 65.97
Weighted Average Grant Date Fair Value, Vested	$ 51.52
Weighted Average Grant Date Fair Value, Forfeited	$ 0.00
Weighted Average Grant Date Fair Value, Unvested restricted stock at end of period	$ 57.39