Stock-Based Compensation (Restricted Stock Activity) (Details) (Restricted Stocks [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Mar. 31, 2013
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
Number of Shares, Granted	15
Number of Shares, Vested	(30)
Number of Shares, Forfeited	(1)
Number of Shares, Unvested restricted stock at end of period	46
Weighted Average Grant Date Fair Value, Unvested restricted stock at beginning of period	$ 63.25
Weighted Average Grant Date Fair Value, Granted	$ 72.95
Weighted Average Grant Date Fair Value, Vested	$ 60.56
Weighted Average Grant Date Fair Value, Forfeited	$ 61.85
Weighted Average Grant Date Fair Value, Unvested restricted stock at end of period	$ 68.16