Employee Benefit Plans - Defined Contribution Plans (Details) - USD ($) $ in Millions	9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Defined Contribution Plan, Minimum Qualification Requirements, Work Period	1000
401(k) Plan employer matching contribution	$ 1.2	$ 1.1
Defined Contribution Plan, 401(k) Plan Employer Matching Contribution, Percentage of Employee Contribution	50.00%	50.00%
Defined Contribution Plan, 401(k) Plan Employer Matching Contribution, Percent of Employees' Gross Pay	6.00%	6.00%
Defined Contribution Plan, 401(k) Plan, Employers Matching Contribution, Annual Vesting Percentage	20.00%	20.00%
Defined Contribution Plan, 401(k) Plan, Vesting Period	5 years	5 years
Defined Contribution Plan, 401(k) Plan, Automatic Vesting Age	65 years
Defined Contribution Plan, Employee Contribution Percentage Vested, Percent	100.00%