Fair Value Measurements (Schedule of Change in Acquisition-related Contingent Consideration Obligations) (Details) - Level 3 Assets and Liabilities - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2018	Mar. 31, 2018
Business Acquisition Contingent Consideration [Line Items]
Beginning balance	$ 47,030
Initial fair value measurements		$ 47,030
Payments	(671)	(671)
Accretion on discount	1,401	1,401
Change in fair value	(1,234)	(1,234)
Ending balance	$ 46,526	$ 46,526