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Basis of Presentation - Fair Value (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2017 USD ($) item	Jun. 30, 2017 USD ($)
Fair Value of Financial Instruments
Liabilities - Contingent payment obligations	$ 13,902	$ 11,840
Goodwill Impairment
Total number of reporting units | item	3
Recurring
Fair Value of Financial Instruments
Equity securities	$ 231	254
Insurance company contracts	29,183	26,940
Interest rate contract	18	20
Total assets	29,432	27,214
Liabilities - Contingent payment obligations	13,902	11,840
Recurring | Level 1
Fair Value of Financial Instruments
Equity securities	231	254
Total assets	231	254
Recurring | Level 2
Fair Value of Financial Instruments
Insurance company contracts	29,183	26,940
Interest rate contract	18	20
Total assets	29,201	26,960
Recurring | Level 3
Fair Value of Financial Instruments
Total assets	0
Liabilities - Contingent payment obligations	$ 13,902	$ 11,840

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