Income Taxes - Reconciliation of the Reserve For Uncertain Tax Positions (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Reconciliation of the reserve for uncertain tax positions
Uncertain tax positions, beginning of year	$ 3,931
Gross (decreases) increases - tax positions in prior period	407
Gross increases—tax positions in current period	1,789
Gross decreases—lapse of statutes	(740)
Currency translation adjustment	(7)
Uncertain tax positions, end of year	5,380	$ 3,931
Accounting Standards Update 2014-09 (Topic 606) [Member]
Reconciliation of the reserve for uncertain tax positions
Uncertain tax positions, beginning of year	$ 3,931	3,921	$ 23,535
Gross (decreases) increases - tax positions in prior period		544	(19,116)
Gross increases—tax positions in current period		0	0
Gross decreases—lapse of statutes		(637)	(830)
Currency translation adjustment		103	332
Uncertain tax positions, end of year		$ 3,931	$ 3,921