DISCONTINUED OPERATIONS DISCONTINUED OPERATIONS (Details) (USD $)	3 Months Ended								11 Months Ended	12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 1997	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	May 04, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Collaborators								$ 3,000,000
Provision for Doubtful Accounts									7,185,000	14,035,000	11,441,000
Disposal Group, Including Discontinued Operation, Interest Expense									4,100,000	800,000	2,800,000
Disposal Group, Including Discontinued Operation, Revenue									1,207,916,000	466,747,000	1,263,520,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability								2,900,000
Disposal Group, Including Discontinued Operation, Inventory												30,560,000
Disposal Group, Including Discontinued Operation, Proceeds	15,000,000							158,800,000		173,800,000
Disposal Group, Including Discontinued Operations, Contingent Sale Price	6,400,000									6,400,000
Disposal Group, Including Discontinued Operations, Proceeds From Net Assets Excluded From Sale										50,800,000
Disposal Groups, Including Discontinued Operations, Remaining Net Assets	5,000,000									5,000,000
Discontinued Operations, Gain On Disposal Before Costs Resulting From Disposal										115,000,000
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, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax										101,624,000	0
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal	134,000			0						134,000	0
Discontinued Operation, Tax Effect of Discontinued Operation									1,000,000	6,100,000	900,000
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
one time costs related to pharmacy services asset sale reserve, settled in cash										(8,449,000)
one time costs related to pharmacy services asset sale reserve, noncash										(4,804,000)
Disposal group, including discontinued operations, prepaid expenses and other current assets												0
Assets of Disposal Group, Including Discontinued Operation, Current	0			38,876,000						0	38,876,000	31,000
Disposal Group, Including Discontinued Operation, Property, Plant, and Equipment, Net												2,000
Disposal Group, Including Discontinued Operation, Goodwill												12,000
Disposal Group, Including Discontinued Operation, Intangible Assets, Net												3,000
Assets of Disposal Group, Including Discontinued Operation												46,708,000
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)									99,881,000	29,844,000	96,888,000
Disposal Group, Including Discontinued Operation, Operating Expense									91,627,000	51,543,000	84,940,000
Discontinued Operation, Amount of Other Income (Loss) from Disposition of Discontinued Operations, before Income Tax									6,607,000	0	0
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	8,599,000	(10,931,000)	(680,000)	4,144,000	882,000	(686,000)	3,956,000	76,059,000	(1,467,000)	73,047,000	8,296,000
Mail Order and Community Pharmacy [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Provision for Doubtful Accounts									12,100,000	12,900,000	7,200,000
community pharmacy [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of locations												27
mail order [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
locations not tranferred as part of sale												2
Impairment in Value of Asset [Axis]
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										5,839,000
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal	0			0						0	0
one time costs related to pharmacy services asset sale reserve, settled in cash										0
one time costs related to pharmacy services asset sale reserve, noncash										(5,839,000)
Facility Closing [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										1,071,000
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal	0			0						0	0
one time costs related to pharmacy services asset sale reserve, settled in cash										(82,000)
one time costs related to pharmacy services asset sale reserve, noncash										(989,000)
Other Credit Derivatives [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										1,198,000
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal	89,000			0						89,000	0
one time costs related to pharmacy services asset sale reserve, settled in cash										(3,133,000)
one time costs related to pharmacy services asset sale reserve, noncash										2,024,000
Employee Severance [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										5,279,000
Disposal Group, Including Discontinued Operations, Accrued Liability Included In Calculation of Gain on Disposal	45,000			0						45,000	0
one time costs related to pharmacy services asset sale reserve, settled in cash										(5,234,000)
one time costs related to pharmacy services asset sale reserve, noncash										$ 0