General - Pharmacy Benefit Administration Revenue (Details)	6 Months Ended
Jun. 30, 2018
Minimum
Operating results by business segment
Anticipated period of benefit of the material right	2 years
Maximum
Operating results by business segment
Anticipated period of benefit of the material right	10 years

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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