Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Income Taxes
Effective income tax rate	34.70%	34.30%	34.80%	34.90%
Excess tax benefits from stock-based compensation			$ 1,831	$ 7,684