GOODWILL AND INTANGIBLE ASSETS - Schedule of Changes in Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Goodwill, beginning balance		$ 560,579
Impairment	$ (251,850)	(251,850)	$ 0	$ 0
Goodwill, ending balance		308,729	560,579
Infusion Services
Goodwill [Roll Forward]
Goodwill, beginning balance		560,579	558,593
Acquisitions		0	0
Other adjustments			1,986
Impairment		(251,850)
Goodwill, ending balance		$ 308,729	$ 560,579	$ 558,593