Represents the notice period required for termination of contract.

No definition available.

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- Definition

Represents the term of the contract entered with the customer.

+ References

No definition available.

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- Definition

Represents the term of the renewed contract with the customer.

+ References

No definition available.

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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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.

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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).

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General - Concentration of Business (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Operating results by business segment
Revenues	$ 1,739,489	$ 1,805,077
Accounts receivable, net	$ 779,863		$ 756,059
Minimum
Operating results by business segment
Term of contracts with customers	1 year
Term of contract extensions or renewals	1 year
Notice period for termination of contract	30 days
Maximum
Operating results by business segment
Term of contracts with customers	3 years
Term of contract extensions or renewals	2 years
Notice period for termination of contract	180 days
Pennsylvania Counties
Operating results by business segment
Revenues	$ 131,700	136,900
CMS
Operating results by business segment
Revenues	63,300	98,400
Accounts receivable, net	128,400		$ 131,000
United States federal government
Operating results by business segment
Revenues	$ 79,500	$ 84,600