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Summary of Significant Accounting Policies - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	$ 56,228	$ 55,609
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	40,181	41,079
Asia/Pacific & Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	16,047	14,530
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	37,346	38,315
Long-lived assets	9,954		$ 9,772
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	11,058	$ 10,057
Long-lived assets	$ 1,799		$ 955