Summary of Significant Accounting Policies - Revenue by Geographic Regions and Significant Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information
Total revenues	$ 45,007	$ 56,160	$ 148,848	$ 153,507
Americas
Segment Reporting Information
Total revenues	34,379	44,012	112,127	118,793
Asia/Pacific & Europe
Segment Reporting Information
Total revenues	10,628	12,148	36,721	34,714
United States
Segment Reporting Information
Total revenues	33,681	42,565	107,834	114,822
Japan
Segment Reporting Information
Total revenues	$ 9,141	$ 9,023	$ 29,246	$ 26,836