Goodwill and Other Identifiable Intangible Assets (Net Identifiable Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Finite-lived Intangible Assets [Roll Forward]
Balance as of June 30, 2017			$ 101,513
Additions			57,000
Amortization expense	$ (5,487)	$ (4,165)	(10,498)	$ (7,320)
Foreign currency translation adjustment			428
Balance as of December 31, 2017	$ 148,443		$ 148,443
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average useful life			4 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average useful life			12 years