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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

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Amount of assets acquired at the acquisition date.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Acquisitions - Willcare, Ingenios, Black Stone, LTS and Bayonne- (Details) $ in Thousands							3 Months Ended		6 Months Ended
	Jun. 18, 2016 USD ($)	Jan. 05, 2016 USD ($)	Nov. 05, 2015 USD ($)	Aug. 29, 2015 USD ($)	Jul. 22, 2015 USD ($) item	Mar. 01, 2015 USD ($)	Jul. 01, 2016 USD ($)	Jul. 01, 2015 USD ($)	Jul. 01, 2016 USD ($)	Jul. 03, 2015 USD ($)	Jan. 01, 2016 USD ($)	Dec. 31, 2014 USD ($)
Acquisitions
Cash paid									$ 30,754	$ 3,000
Approximate fair value estimates of the assets acquired and liabilities assumed
Goodwill							$ 321,539		321,539		$ 277,061	$ 192,523
Deal and transition costs incurred								$ 203
Ingenios
Acquisitions
Purchase price					$ 11,400
Interest acquired (as a percent)					100.00%
Cash consideration					$ 2,000
Number of States \| item					7
Black Stone
Acquisitions
Purchase price			$ 40,000
LTS
Acquisitions
Purchase price		$ 37,000
Bayonne
Acquisitions
Purchase price		$ 4,000
ResCare
Acquisitions
Purchase price	$ 6,000
WillCare
Acquisitions
Purchase price				$ 50,800
Approximate fair value estimates of the assets acquired and liabilities assumed
Accounts receivable							14,022		14,022
Property, plant & equipment							2,964		2,964
Other assets							1,648		1,648
Goodwill							129,016		129,016
Other intangibles							15,740		15,740
Assets acquired							163,390		163,390
Liabilities assumed							(9,663)		(9,663)
Net assets acquired							153,727		$ 153,727
WillCare \| Ingenios
Approximate fair value estimates of the assets acquired and liabilities assumed
Deal and transition costs incurred							$ 2,100
Ohio \| WillCare
Acquisitions
Cash paid						$ 3,000