Operations by Segments and Geographic Areas - Schedule of Long-Lived Assets, Based on Geographical Location, Excluding Deferred Tax Assets and Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Long-lived assets:
Total long-lived assets	$ 123,670	$ 81,718
United States
Long-lived assets:
Total long-lived assets	64,858	44,357
United Kingdom
Long-lived assets:
Total long-lived assets	41,835	32,035
Other
Long-lived assets:
Total long-lived assets	$ 16,977	$ 5,326