DISCONTINUED OPERATIONS DISCONTINUED OPERATIONS (Details) (USD $)	0 Months Ended	3 Months Ended								8 Months Ended	12 Months Ended
	May 04, 2012	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Proceeds	$ 173,800,000
Initial portion of the sale price received in cash at closing in the Pharmacy Services Asset Sale.	158,800,000
Disposal Group, Including Discontinued Operation, Proceeds Subsequent to Close for Retention of Certain Business	15,000,000
Disposal Group, Including Discontinued Operations, Contingent Sale Price		(6,400,000)									(6,400,000)
Disposal Groups, Including Discontinued Operations, Remaining Net Assets		0				4,800,000				4,800,000	0	4,800,000
Disposal Group, Including Discontinued Operation, Inventory	30,560,000
Disposal group, including discontinued operations, prepaid expenses and other current assets	299,000
Assets of Disposal Group, Including Discontinued Operation, Current	30,859,000
Disposal Group, Including Discontinued Operation, Property, Plant, and Equipment, Net	1,592,000
Disposal Group, Including Discontinued Operation, Goodwill	11,754,000
Disposal Group, Including Discontinued Operation, Intangible Assets, Net	2,503,000
Assets of Disposal Group, Including Discontinued Operation	46,708,000
Proceeds from Collaborators									3,000,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability									2,900,000
Discontinued Operations, Gain On Disposal Before Costs Resulting From Disposal										108,200,000
Discontinued Operations Gain On Disposal Net of Costs Resulting From Disposal										101,600,000
Discontinued Operation, Transaction Costs From Disposal of Discontinued Operation										5,600,000
Discontinued Operations, Costs Included In Net Gain From Disposal of Discontinued Operation												13,387,000
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax										79,200,000
Discontinued Operations, Deferred Tax Assets Included In Effective Tax Calculation										24,100,000
Discontinued Operations, Costs Included In Net Gain From Disposal of Discontinued Operation, Excluding Legal Settlement											7,600,000
Liabilities of Disposal Group, Including Discontinued Operation		16,300,000									16,300,000
Liabilities of Disposal Group, Including Discontinued Operation, Current		4,300,000									4,300,000
Liabilities of Disposal Group, Including Discontinued Operation, Noncurrent		12,000,000									12,000,000
Provision for Doubtful Accounts											20,963,000	14,035,000	11,441,000
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		(3,182,000)	(11,645,000)	(563,000)	(658,000)	8,599,000	(10,931,000)	76,059,000	(680,000)
Community Pharmacy
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of locations	27
Pharmacy Services Assets Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operations, Gain On Disposal Before Costs Resulting From Disposal											6,548,000	101,624,000	0
Discontinued Operations, Costs Included In Net Gain From Disposal of Discontinued Operation											22,596,000	13,387,000
Discontinued Operation, Tax Effect of Discontinued Operation										6,100,000	0	6,117,000	888,000
one time costs related to pharmacy services asset sale reserve, settled in cash											(6,364,000)	(8,449,000)
one time costs related to pharmacy services asset sale reserve, noncash											(79,000)	(4,804,000)
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal		16,287,000				134,000				134,000	16,287,000	134,000
Disposal Group, Including Discontinued Operation, Revenue											(75,000)	466,747,000	1,263,520,000
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)											(519,000)	29,844,000	96,888,000
Disposal Group, Including Discontinued Operation, Operating Expense											7,118,000	38,612,000	77,727,000
Disposal Group, Including Discontinued Operation, General and Administrative Expense											15,000,000	0	0
Provision for Doubtful Accounts											0	12,931,000	7,213,000
Disposal Group, Including Discontinued Operation, Interest Expense											(41,000)	761,000	2,764,000
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest											(16,048,000)	73,047,000	8,296,000
mail order
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
locations not transferred as part of sale	2
Asset Impairment | Pharmacy Services Assets Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operations, Costs Included In Net Gain From Disposal of Discontinued Operation											0	5,839,000
one time costs related to pharmacy services asset sale reserve, settled in cash											0	0
one time costs related to pharmacy services asset sale reserve, noncash											0	(5,839,000)
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal		0				0				0	0	0
Employee Severance | Pharmacy Services Assets Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operations, Costs Included In Net Gain From Disposal of Discontinued Operation											186,000	5,279,000
one time costs related to pharmacy services asset sale reserve, settled in cash											(103,000)	(5,234,000)
one time costs related to pharmacy services asset sale reserve, noncash											(36,000)	0
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal		92,000				45,000				45,000	92,000	45,000
Facility Closing | Pharmacy Services Assets Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operations, Costs Included In Net Gain From Disposal of Discontinued Operation											0	1,071,000
one time costs related to pharmacy services asset sale reserve, settled in cash											0	(82,000)
one time costs related to pharmacy services asset sale reserve, noncash											0	(989,000)
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal		0				0				0	0	0
Other Restructuring Costs | Pharmacy Services Assets Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operations, Costs Included In Net Gain From Disposal of Discontinued Operation											7,410,000	1,198,000
one time costs related to pharmacy services asset sale reserve, settled in cash											(6,261,000)	(3,133,000)
one time costs related to pharmacy services asset sale reserve, noncash											(43,000)	2,024,000
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal		1,195,000				89,000				89,000	1,195,000	89,000
All Current Acquirees | Other Acquisition and Integration Expenses [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operations, Costs Included In Net Gain From Disposal of Discontinued Operation											15,000,000	0
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal		$ 15,000,000				$ 0				$ 0	$ 15,000,000	$ 0