Business Combinations (Summary of Unaudited Pro Forma Financial Information) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition Pro Forma Information [Abstract]
Net revenues	$ 962,399	$ 1,139,321
Net loss	$ (85,392)	$ (120,146)
Net loss per share - basic and diluted	$ (0.71)	$ (1.02)
Shares used in per share calculation - basic and diluted	119,814	117,954