Defined Benefit Pension Obligation - Obligations and Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Defined Benefit Pension Obligation
Actuarial loss	$ 500
Change in benefit obligation:
Actuarial loss	500
Defined benefit pension plan
Defined Benefit Pension Obligation
Actuarial loss	1,163	$ 1,007
Change in benefit obligation:
Benefit obligation - beginning of fiscal year	8,861	5,294
Service cost	1,903	980	$ 734
Interest cost	76	107	60
Plan participants' contributions	2,239	3,010
Plan amendment	(490)
Actuarial loss	1,163	1,007
Foreign currency changes	(347)	(210)
Benefit and expense payments	(970)	(1,327)
Benefit obligation - end of fiscal year	12,435	8,861	5,294
Change in plan assets:
Plan assets - beginning of fiscal year	7,184	4,357
Employer contributions	1,226	1,166
Actual return on plan assets	176	152
Plan participants' contributions	2,239	3,010
Foreign currency changes	(283)	(174)
Benefit and expense payments	(970)	(1,327)
Plan assets - end of fiscal year	9,572	7,184	$ 4,357
Funded status	$ (2,863)	$ (1,677)