SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Allowance for Doubtful Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	$ 151,315	$ 248,140
Allowance for Doubtful Accounts	(22,212)	(22,728)
Accounts Receivable, Net, Current	129,103	225,412
Pharmacy Services Assets Sale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	12,800
Allowance for Doubtful Accounts	8,000
Large Pharmacy Network Contract [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percent Of Accounts Receivable		21.00%
0-180 Days [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	118,297	218,576
Over 180 Days [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	33,018	29,564
Government [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	43,868	41,975
Government [Member] | Competitive Acquisition Program [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Net, Current		2,500
Government [Member] | 0-180 Days [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	41,124	36,498
Government [Member] | Over 180 Days [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	2,744	5,477
Commercial Customer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	101,526	197,234
Increase (Decrease) in Accounts Receivable	95,700
Commercial Customer [Member] | Competitive Acquisition Program [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Net, Current		900
Commercial Customer [Member] | 0-180 Days [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	75,389	175,730
Commercial Customer [Member] | Over 180 Days [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	26,137	21,504
Increase (Decrease) in Accounts Receivable	(4,600)
Health Care Patient [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	5,921	8,931
Health Care Patient [Member] | 0-180 Days [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	1,784	6,348
Health Care Patient [Member] | Over 180 Days [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	$ 4,137	$ 2,583