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		6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information
Total revenues	$ 48,247	$ 51,538	$ 99,880	$ 102,866
Americas
Segment Reporting Information
Total revenues	35,040	34,418	71,496	68,916
Asia/Pacific
Segment Reporting Information
Total revenues	13,207	17,120	28,384	33,950
United States
Segment Reporting Information
Total revenues	33,704	33,317	68,713	66,796
Japan
Segment Reporting Information
Total revenues	$ 10,441	$ 14,340	$ 22,635	$ 28,920