Segment Information (Long-lived Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Long-lived assets	$ 332,591	$ 336,019
United States [Member]
Segment Reporting Information [Line Items]
Long-lived assets	113,069	115,866
United Kingdom [Member]
Segment Reporting Information [Line Items]
Long-lived assets	137,517	132,876
All Other [Member]
Segment Reporting Information [Line Items]
Long-lived assets	$ 82,005	$ 87,277