General - Customers Exceeding Ten Percent of Consolidated Net Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Operating results by business segment
Revenues	$ 1,805,077	$ 1,305,623
Florida Contract
Operating results by business segment
Termination notice	1 day
Termination notice period without cause	30 days
Revenues	$ 152,400	145,700
Healthcare \| Customer A
Operating results by business segment
Revenues	180,457	37,374
Healthcare \| Customer B
Operating results by business segment
Revenues	163,733
Healthcare \| Customer C
Operating results by business segment
Revenues	117,254
Pharmacy Management \| Customer D
Operating results by business segment
Revenues	$ 91,442	$ 92,712

The number of days required for a customer to have the right to terminate a contract for cause.

No definition available.

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- Definition

Represents the number of days required for a customer to have the right to terminate a contract without cause after January 1, 2014.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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