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Fair Value Measurements (Schedule of Change in Acquisition-related Contingent Consideration Obligations) (Details) - Level 3 Investments $ in Thousands | 12 Months Ended
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Jun. 30, 2018 USD ($)
Business Acquisition Contingent Consideration [Line Items] |
Initial fair value measurements | $ 47,030
Payments | (671)
Resolution of contingency | (36,980)
Accretion on discount | 3,134
Change in fair value | 236
Ending balance | $ 12,749

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