DISCONTINUED OPERATIONS - Summary of Accruals (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		15 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015
Pharmacy Services Assets Sale
Movement in Accrued Expenses and Other Current Liabilities [Roll Forward]
Balance at December 31, 2014	$ 12,998
Cash payments	1,707
Balance at March 31, 2015	8,314		8,314
one time costs related to pharmacy services asset sale reserve, noncash	6,391
Pharmacy Services Assets Sale | Other restructuring costs
Movement in Accrued Expenses and Other Current Liabilities [Roll Forward]
Balance at December 31, 2014	609
Expenses	679
Cash payments	(15)
Balance at March 31, 2015	1,273		1,273
Civil Action
Movement in Accrued Expenses and Other Current Liabilities [Roll Forward]
Cash payments	6,100	3,000	9,100
Civil Action | Pharmacy Services Assets Sale
Movement in Accrued Expenses and Other Current Liabilities [Roll Forward]
Balance at December 31, 2014	12,389
Expenses	1,028
Cash payments	6,376
Balance at March 31, 2015	$ 7,041		$ 7,041