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Business Combinations (Narrative) (Details) - Healthcarefirst [Member] - USD ($) $ in Millions |  | 3 Months Ended
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Jul. 06, 2018 | Sep. 30, 2018
Business Combinations [Line Items] |  |
Date of acquisition agreement |  | Jul. 06, 2018
Percentage of acquisition shares | 100.00% |
Total purchase price of acquisition | $ 126.3 |
Goodwill from acquisition, non-tax deductible amount | $ 125.0 |

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