Employee Benefits Plans 401(k) (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2017 USD ($) Rate	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
Compensation and Retirement Disclosure [Abstract]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | Rate	100.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | Rate	5.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount	$ 5
Defined Contribution Plan, Age Requirement	18
Defined Contribution Plan, Employment Length Requirement	6 months
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 0
Defined Contribution Plan, Matching Contributions	$ 17,550	$ 16,794	$ 15,378