Income Taxes - Schedule of Income (Loss) Before Income Taxes By Geographic Area (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Income Tax Contingency [Line Items]
(Loss) income before income taxes	$ (7,401)	$ 6,894	$ 1,125
North America
Income Tax Contingency [Line Items]
Income (loss) before income taxes, domestic	(2,417)	9,403	(29)
United Kingdom
Income Tax Contingency [Line Items]
Income (loss) before income taxes, international	4,918	4,184	7,144
Continental Europe
Income Tax Contingency [Line Items]
Income (loss) before income taxes, international	1,292	2,194	6,062
Asia-Pacific and Middle East
Income Tax Contingency [Line Items]
Income (loss) before income taxes, international	$ (11,194)	$ (8,887)	$ (12,052)