OPERATING AND REPORTABLE SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenues	$ 208,879	$ 170,365	$ 598,683	$ 481,899
Adjusted EBITDA	19,538	18,238	59,145	48,664
Interest expense, net	(7,182)	(6,497)	(20,168)	(19,705)
Loss on extinguishment of debt	(15,898)	0	(15,898)	0
Income tax benefit	587	2,506	31	2,644
Depreciation	(3,269)	(2,134)	(8,298)	(6,115)
Amortization of intangibles	(1,009)	(1,087)	(4,801)	(2,844)
Stock-based compensation expense	(1,427)	(1,687)	(7,260)	(4,398)
Acquisition and integration expenses	(4,890)	(998)	(13,025)	(1,806)
Restructuring and other expenses and investments	(1,409)	(2,321)	(4,424)	(3,696)
Loss from continuing operations, net of income taxes	(22,442)	(605)	(38,229)	(6,921)
Assets	926,300		926,300		642,376
Infusion Services [Member]
Segment Reporting Information [Line Items]
Product Revenue	169,011	123,361	469,594	338,721
Service Revenue	5,791	2,575	15,750	7,242
Revenues	174,802	125,936	485,344	345,963
Adjusted EBITDA	14,693	9,931	41,201	25,740
Assets	776,878		776,878		438,623
Home Health Services [Member]
Segment Reporting Information [Line Items]
Service Revenue	18,071	17,299	54,240	50,870
Adjusted EBITDA	567	1,402	2,547	3,557
Assets	63,402		63,402		62,403
PBM Services [Member]
Segment Reporting Information [Line Items]
Service Revenue	16,006	27,130	59,099	85,066
Adjusted EBITDA	4,278	6,905	15,397	19,367
Assets	32,363		32,363		36,354
Corporate [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	(7,483)	(6,625)	(23,531)	(19,665)
Assets	53,641		53,641		95,813
Assets associated with discontinued operations, not sold [Member]
Segment Reporting Information [Line Items]
Assets	$ 16		$ 16		$ 9,183