Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Income Taxes
Income tax expense	$ 5,958	$ 22,435	$ 23,013	$ 42,235
Effective income tax rate (as a percent)	30.60%	33.40%	33.00%	34.60%
Unrecognized tax benefits	$ 5,800		$ 5,800		$ 578
Unrecognized tax benefits cumulative interest and penalties recorded	$ 0		$ 0		$ 0