General (Details 11) (USD $) In Thousands, unless otherwise specified				6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2014 Partners Rx	Dec. 31, 2013 Partners Rx	Jun. 30, 2014 AlphaCare Holdings Inc.	Dec. 31, 2013 AlphaCare Holdings Inc.	Jun. 30, 2014 CDMI	Apr. 30, 2014 CDMI	Jun. 30, 2014 Health Plan	Dec. 31, 2013 Health Plan	Jun. 30, 2014 Specialty Solutions	Dec. 31, 2013 Specialty Solutions	Jun. 30, 2014 Pharmacy Management	Dec. 31, 2013 Pharmacy Management	Jun. 30, 2014 Public Sector	Dec. 31, 2013 Public Sector
Goodwill
Goodwill	$ 557,425	$ 488,206	$ 426,939				$ 20,879		$ 68,968	$ 120,485	$ 120,485	$ 104,549	$ 104,549	$ 311,512	$ 242,290	$ 20,879	$ 20,882
Changes in goodwill
Balance as of beginning of period	557,425	488,206	426,939			20,879			68,968	120,485	120,485	104,549	104,549	311,512	242,290	20,879	20,882
Acquisition					40,385		20,882	68,968
Acquisition, measurement period adjustments				254		(3)
Balance as of end of period	$ 557,425	$ 488,206	$ 426,939				$ 20,879		$ 68,968	$ 120,485	$ 120,485	$ 104,549	$ 104,549	$ 311,512	$ 242,290	$ 20,879	$ 20,882