Restricted Net Assets (Details) - China - Subsidiaries [Member] - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Restricted Statutory Reserves [Line Items]
Foreign subsidiaries, restricted statutory reserves	$ 209.8	$ 209.5
Foreign subsidiaries, restricted statutory reserves percent of parent consolidated net assets	61.40%	64.40%
Minimum [Member]
Restricted Statutory Reserves [Line Items]
Foreign subsidiaries, minimum percent of after-tax profit required annually in statutory reserves	10.00%
Maximum [Member]
Restricted Statutory Reserves [Line Items]
Foreign subsidiaries, statutory reserves maximum cumulative amount as a percent of registered capital	50.00%