DISCONTINUED OPERATIONS - Additional Information (Details) (USD $)	3 Months Ended		0 Months Ended			12 Months Ended	15 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2014 limited_liabiity_company	Feb. 01, 2012	Dec. 23, 2013	Dec. 31, 2014	Mar. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 261,681,000	$ 239,293,000
Loss from continuing operations, net of income taxes	(15,905,000)	(25,256,000)
Home Health Services
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of limited liability companies in which Company has divested ownership interests			2
Reduction in consideration transferred		500,000	500,000
Reduction in revenue		(400,000)	(400,000)
Revenue		239,300,000
Gain (loss) associated with reclassification		200,000
Loss from continuing operations, net of income taxes		25,300,000
Gain on sale before income taxes	0	995,000
Pharmacy Services Assets Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
One time costs related to pharmacy services asset sale reserve, settled in cash	1,707,000
Consideration received				173,800,000
Gain on sale before income taxes				108,200,000
Number of locations				27
Assets of community pharmacy locations sold, number				3
Traditional and specialty mail services operations, number				3
Disposal Group, Including Discontinued Operation, Liabilities	8,314,000					12,998,000	8,314,000
Civil Action
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Legal settlement					15,000,000	15,000,000
One time costs related to pharmacy services asset sale reserve, settled in cash	6,100,000	3,000,000					9,100,000
Litigation settlement paid to Relator	300,000	400,000					700,000
Civil Action | Pharmacy Services Assets Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
One time costs related to pharmacy services asset sale reserve, settled in cash	6,376,000
Disposal Group, Including Discontinued Operation, Liabilities	7,041,000					12,389,000	7,041,000
Amendment Number One | Home Health Services
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received		59,500,000	59,500,000
Additional payment received by company			1,100,000
Significant Acquisitions and Disposals, Adjusted Acquisition Costs or Sale Proceeds			$ 60,600,000
Number of locations excluded from sale		1	1