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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

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