STOCK-BASED COMPENSATION (Details) (USD $) In Millions, except Share data, unless otherwise specified				0 Months Ended	3 Months Ended		9 Months Ended				0 Months Ended
	Sep. 30, 2013	Apr. 02, 2013	Dec. 31, 2012	May 07, 2013 Employee Stock [Member]	Sep. 30, 2013 All Share-Based Payment Plans [Member]	Sep. 30, 2012 All Share-Based Payment Plans [Member]	Sep. 30, 2013 All Share-Based Payment Plans [Member]	Sep. 30, 2012 All Share-Based Payment Plans [Member]	Sep. 30, 2013 2008 Plan [Member]	Jun. 10, 2010 2008 Plan [Member]	May 07, 2013 2008 Plan [Member] Director [Member]	Jan. 02, 2008 2008 Plan [Member] Director [Member]	Sep. 30, 2013 CHS 2006 Equity Incentive Plan [Member]	Sep. 30, 2013 BioScrip/CHS Plan [Member] executive
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares originally authorized									3,580,000				13,000,000	3,106,315
Adjustment to number of shares authorized										3,275,000
Number of shares authorized										6,855,000	800,000	500,000		2,390,229
Number of additional shares authorized											300,000
Number of shares available for grant									738,325					932,111
Rollover options														716,086
Number of executives issued options														5
Stock expense					$ 1.5	$ 1.1	$ 4.8	$ 3.3
Restricted stock expense					1.1	0.2	2.4	0.3
Stock appreciation right expense					$ (1.3)	$ 0.5	$ 0.1	$ 0.8
Employee Stock Purchase Plan [Abstract]
Purchase price of common stock, percent				85.00%
Employee Stock Ownership Plan, Shares Registered		750,000
Common Stock, Par or Stated Value Per Share	$ 0.0001	$ 0.0001	$ 0.0001