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.

+ Details

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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).

+ References

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General - Concentration of Business (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Operating results by business segment
Revenues	$ 1,853,506	$ 1,419,406	$ 5,469,506	$ 4,144,168
Accounts receivable, net	820,748		$ 820,748		$ 660,775
Minimum
Operating results by business segment
Term of contracts with customers			1 year
Term of renewal contracts			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 renewal contracts			2 years
Notice period for termination of contract			180 days
Pennsylvania Counties
Operating results by business segment
Revenues			$ 410,900	357,300
CMS
Operating results by business segment
Revenues			321,300	368,200
Accounts receivable, net	$ 139,100		139,100		$ 131,500
United States federal government
Operating results by business segment
Revenues			$ 235,300	$ 257,700