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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

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