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.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Namespace Prefix:
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Period Type:

- Details

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Balance Type:
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General - Concentration of Business (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Operating results by business segment
Revenues	$ 1,788,336	$ 1,810,923	$ 3,527,825	$ 3,616,000
Accounts receivable, net	810,431		$ 810,431		$ 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			$ 271,400	275,300
CMS
Operating results by business segment
Revenues			133,200	205,100
Accounts receivable, net	$ 131,700		131,700		$ 131,000
United States federal government
Operating results by business segment
Revenues			$ 156,700	$ 165,800