Goodwill and Other Intangible Assets (Changes in Carrying Amount of Goodwill) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Goodwill
Goodwill		$ 1,024,136	$ 1,018,892
Acquisition activity			7,062
Reallocation of goodwill between reporting units			0
Impairment charge	$ (7,700)	0	(7,700)	$ 0
Translation and other adjustments, net		(15,157)	5,882
Goodwill	1,024,136	1,008,979	1,024,136	1,018,892
Accumulated impairment charge	134,277	134,277	134,277	126,577
United States
Goodwill
Goodwill		552,814	588,333
Acquisition activity			0
Reallocation of goodwill between reporting units			(35,519)
Impairment charge			0
Translation and other adjustments, net		0	0
Goodwill	552,814	552,814	552,814	588,333
United Kingdom
Goodwill
Goodwill		377,163	329,135
Acquisition activity			7,062
Reallocation of goodwill between reporting units			35,519
Impairment charge			0
Translation and other adjustments, net		(14,344)	5,447
Goodwill	377,163	362,819	377,163	329,135
Accumulated impairment charge	97,358	97,358	97,358	97,358
Rest of World
Goodwill
Goodwill		94,159	101,424
Acquisition activity			0
Reallocation of goodwill between reporting units			0
Impairment charge			(7,700)
Translation and other adjustments, net		(813)	435
Goodwill	94,159	93,346	94,159	101,424
Europe
Goodwill
Accumulated impairment charge	29,219	29,219	29,219	$ 29,219
Cultivate \| Operating Segments
Goodwill
Accumulated impairment charge	$ 7,700	$ 7,700	$ 7,700

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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