GOODWILL AND INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 571,830		$ 571,337
Intangible Assets, Gross Carrying Amount	33,350		33,350
Intangible Assets, Accumulated Amortization	(18,229)		(16,526)
Intangible Assets, Net Carrying Amount	15,121		16,824
Amortization of Intangible Assets	1,703	2,082
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2014 (nine months)	4,860
2015	5,318
2016	3,078
2017	1,799
2018 and beyond	66
Total	15,121
Infusion customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Definite Lived Assets, Gross Carrying Amount	25,650		25,650
Definite Lived Assets, Accumulated Amortization	(13,202)		(12,062)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	12,448		13,588
Infusion trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Definite Lived Assets, Gross Carrying Amount	6,200		6,200
Definite Lived Assets, Accumulated Amortization	(3,969)		(3,514)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	2,231		2,686
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Definite Lived Assets, Gross Carrying Amount	1,500		1,500
Definite Lived Assets, Accumulated Amortization	(1,058)		(950)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	$ 442		$ 550
Minimum | Infusion customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	5 months
Minimum | Infusion trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	23 months
Minimum | Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	1 year
Maximum | Infusion customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	4 years
Maximum | Infusion trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	3 years
Maximum | Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years