Summary of Significant Accounting Policies - Revenue from Unaffiliated Customers by Geographic Regions and Significant Geographic Area (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information
Total revenues	$ 45,155	$ 55,064	$ 145,035	$ 157,930
Americas
Segment Reporting Information
Total revenues	32,901	32,641	104,397	101,557
Asia/Pacific
Segment Reporting Information
Total revenues	12,254	22,423	40,638	56,373
United States
Segment Reporting Information
Total revenues	31,715	31,619	100,428	98,415
Japan
Segment Reporting Information
Total revenues	$ 9,678	$ 19,202	$ 32,313	$ 48,122