DISCONTINUED OPERATIONS - Operating Results of Divested Traditional and Specialty Pharmacy Mail Operations and Community Pharmacies (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended		9 Months Ended
	Feb. 01, 2012	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Legal settlement expense		$ 0	$ 15,000	$ 0	$ 15,000
Gain on sale, before income taxes		0	6,543	0	6,550
Loss from discontinued operations, net of income taxes		(1,135)	(10,331)	(2,400)	(9,680)
Pharmacy Services Assets Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		0	(3)	0	(58)
Gross profit		0	580	(27)	503
Operating expenses		598	3,768	3,394	4,960
Interest (income) expense		0	0	0	(41)
Gain on sale, before income taxes	108,100
Loss from discontinued operations, net of income taxes		$ (598)	$ (11,645)	$ (3,421)	$ (12,866)