Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Deferred tax assets:
Effective income tax rate (as a percent)	30.20%	30.60%	30.60%	33.00%
Income tax expense (benefit)	$ 3,542	$ 5,958	$ (9,340)	$ 23,013
Unrecognized tax benefits cumulative interest and penalties recorded	0		0		$ 0
Other liabilities
Deferred tax assets:
Unrecognized tax benefits	$ 6,600		$ 6,600		$ 6,200