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Summary of Significant Accounting Policies - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	$ 56,077	$ 56,012	$ 173,547	$ 169,788
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	40,181	40,366	124,646	123,885
Asia/Pacific & Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	15,896	15,646	48,901	45,903
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	37,720	37,598	116,421	115,574
Long-lived assets	9,396		9,396		$ 9,772
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	9,986	$ 10,099	31,541	$ 30,184
Long-lived assets	$ 1,324		$ 1,324		$ 955