Income Tax - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2019 USD ($) Year	Mar. 31, 2018 USD ($)	Mar. 31, 2019 USD ($) Year	Mar. 31, 2018 USD ($)
Income Tax Examination [Line Items]
Income tax expense (benefit)	$ 236	$ 566	$ 1,222	$ 1,289
Number of prior years with gross receipt eligible for BEAT minimum tax | Year	3		3
Minimum
Income Tax Examination [Line Items]
Average annual prior gross receipts treshhold amount for exemption from base erosion and anti abuse tax			$ 500,000
Foreign
Income Tax Examination [Line Items]
Income tax expense (benefit)	$ 200	$ 600	$ 1,200	$ 1,300
Decrease in income tax expense	$ (400)