ACQUISITIONS CarePoint Business (Details) (USD $)				4 Months Ended							4 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 CarePoint Partners Holding LLC	Aug. 23, 2013 CarePoint Partners Holding LLC patient location state		Aug. 23, 2013 Term Loan B Facility Secured Term Debt CarePoint Partners Holding LLC	Aug. 23, 2013 Customer Relationships CarePoint Partners Holding LLC	Aug. 23, 2013 Trademarks CarePoint Partners Holding LLC	Aug. 23, 2013 Noncompete Agreements CarePoint Partners Holding LLC	Dec. 31, 2013 Minimum Customer Relationships CarePoint Partners Holding LLC	Dec. 31, 2013 Maximum Customer Relationships CarePoint Partners Holding LLC	Dec. 31, 2013 Maximum Trademarks CarePoint Partners Holding LLC	Dec. 31, 2013 Maximum Noncompete Agreements CarePoint Partners Holding LLC
Business Acquisition [Line Items]
Number of customers					20,500
Number of locations					28
Number of States in which Entity Operates					9
Business Combination, Consideration Transferred Excluding Contingent Consideration					$ 211,100,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High					10,000,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Trade Receivables				(2,200,000)
Business Combination Contingent Consideration, Initial Fair Value					9,800,000
Debt Instrument, Face Amount							150,000,000
Cash					14,000
Accounts receivable					16,644,000
Inventories					3,263,000
Other current assets					272,000
Property and equipment					3,266,000
Identifiable intangible assets(1)					16,700,000	[1]		13,600,000.000	2,600,000.000	500,000.000
Current liabilities					(8,128,000)
Non-current liabilities					(621,000)
Total identifiable net assets					31,410,000
Goodwill	605,121,000	350,810,000	312,387,000		187,228,000
Total cash and fair value of contingent consideration					218,638,000
Weighted- Average Useful Lives											2 years	4 years	2 years	5 years
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual				55,800,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual				$ 2,300,000

[1] The following table summarizes the provisional amounts and useful lives assigned to identifiable intangible assets: Weighted- Average Useful Lives AmountsRecognized as of the Closing Date(in thousands)Customer relationships2 - 4 years $13,600Trademarks2 years 2,600Non-compete agreements5 years 500Total identifiable intangible assets acquired $16,700