ACQUISITIONS HomeChoice Partners, Inc. (Details) (USD $)	3 Months Ended	12 Months Ended			11 Months Ended						11 Months Ended
	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2013 HomeChoice Partners, Inc.	Feb. 01, 2013 HomeChoice Partners, Inc. patient location		Feb. 01, 2013 Customer Relationships HomeChoice Partners, Inc.	Feb. 01, 2013 Trademarks HomeChoice Partners, Inc.	Feb. 01, 2013 Noncompete Agreements HomeChoice Partners, Inc.	Dec. 31, 2013 Minimum Customer Relationships HomeChoice Partners, Inc.	Dec. 31, 2013 Maximum Customer Relationships HomeChoice Partners, Inc.	Dec. 31, 2013 Maximum Trademarks HomeChoice Partners, Inc.	Dec. 31, 2013 Maximum Noncompete Agreements HomeChoice Partners, Inc.
Business Acquisition [Line Items]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual					$ 67,700,000
Business Acquisition, Percentage of Voting Interests Acquired						100.00%
Number of customers						15,000
Number of locations						14
Business Acquisition, Cost of Acquired Entity, Initial Purchase Price						72,900,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High						20,000,000
Business combination, contingent consideration period		24 months			2 years
Business Combination Contingent Consideration, Initial Fair Value						8,000,000
Business Combination, contingent consideration, range of outcomes, value, high, first year					10,000,000
Business Combination, contingent consideration, range of outcomes, value, high, second year					10,000,000
Business Combination, Contingent Consideration, Liability					2,200,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	2,900,000				5,800,000
Weighted- Average Useful Lives (Months)											5 months	3 years	23 months	1 year
Accounts receivable						9,693,000
Inventories						1,984,000
Other current assets						154,000
Property and equipment						2,432,000
Identifiable intangible assets(1)						4,000,000	[1]	2,000,000	1,000,000	1,000,000
Other non-current assets						30,000
Current liabilities						(4,073,000)
Total identifiable net assets						14,220,000
Goodwill		350,810,000	605,121,000	312,387,000		66,701,000
Total cash and fair value of contingent consideration						80,921,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual					$ 2,600,000

[1] The following table summarizes the provisional amounts and useful lives assigned to identifiable intangible assets: Weighted- Average Useful Lives AmountsRecognized as ofAcquisition Date(in thousands)Customer relationships5 mo. - 3 years $2,000Trademarks23 months 1,000Non-compete agreements1 year 1,000Total identifiable intangible assets acquired $4,000