Segment Information (Schedule Of Long-Lived Assets By Geographic Areas) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Long lived assets	$ 417,335	$ 387,460	$ 386,550
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long lived assets	164,155	149,706	142,337
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long lived assets	162,490	165,425	173,394
Singapore
Revenues from External Customers and Long-Lived Assets [Line Items]
Long lived assets	39,977	19,465	17,657
Rest Of The World [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long lived assets	$ 50,713	$ 52,864	$ 53,162