General (Details 2) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended	0 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Item	Jun. 30, 2013	Dec. 31, 2014	Mar. 31, 2014 Maricopa County Regional Behavioral Health Authority Item	Jun. 30, 2014 Maricopa County Regional Behavioral Health Authority	Jun. 30, 2013 Maricopa County Regional Behavioral Health Authority	Jun. 30, 2014 Commercial Customer A Service	Jun. 30, 2013 Commercial Customer A Service	Jun. 30, 2014 Commercial Customer B Service	Jun. 30, 2013 Commercial Customer B Service	Jun. 30, 2014 Commercial Customer C Service	Jun. 30, 2013 Commercial Customer C Service	Jun. 30, 2013 Commercial Customer D Service	Jun. 30, 2014 Public Sector Customer E Service	Jun. 30, 2013 Public Sector Customer E Service	Jun. 30, 2014 Specialty Solutions Customer A Service	Jun. 30, 2013 Specialty Solutions Customer A Service	Jun. 30, 2014 Specialty Solutions Customer E Service	Jun. 30, 2013 Specialty Solutions Customer E Service	Jun. 30, 2014 Specialty Solutions Customer F Service	Jun. 30, 2013 Specialty Solutions Customer F Service	Jun. 30, 2014 Specialty Solutions Customer G Service	Jun. 30, 2013 Specialty Solutions Customer G Service	Jun. 30, 2014 Specialty Solutions Customer H Service	Jun. 30, 2013 Specialty Solutions Customer H Service	Jun. 30, 2014 Pharmacy Management Customer I Service Item	Jun. 30, 2013 Pharmacy Management Customer I Service	Jun. 30, 2014 Pharmacy Management Customer J Service	Jun. 30, 2013 Pharmacy Management Customer J Service	Jun. 30, 2014 Pharmacy Management Customer K Service	Jun. 30, 2013 Pharmacy Management Customer K Service
Net revenues
Projected ACA fees					$ 21,300,000
ACA fees expensed	5,600,000		10,700,000
Number of customers committed to recover the economic impact of ACA fees			4
Revenues recorded associated with the accrual for the reimbursement of the economic impact of the ACA fees from its customers	10,900,000		14,100,000
Revenues recorded associated with the accrual for the reimbursement of the economic impact of the ACA fees from its customers for previous quarter			4,800,000
Managed Care Revenue	595,100,000	654,600,000	1,323,900,000	1,284,300,000
Fee-For-Service and Cost-Plus Contracts Revenue	73,000,000	51,000,000	132,700,000	100,300,000
Block Grant Revenues	0	31,400,000	33,000,000	64,600,000
Performance-Based Revenue	2,400,000	1,500,000	5,400,000	3,400,000
Rebate Revenues	9,200,000	8,100,000	13,300,000	16,800,000
PBM Revenue	146,300,000	5,500,000	227,500,000	10,500,000
Dispensing Revenue	59,400,000	90,600,000	115,100,000	184,700,000
Significant customers
Number of members receiving behavioral healthcare management and other related services						680,000
Revenues generated	$ 888,014,000	$ 842,748,000	$ 1,854,489,000	$ 1,664,509,000			$ 209,500,000	$ 367,200,000	$ 110,492,000	$ 103,460,000	$ 90,923,000	$ 70,919,000	$ 47,769,000	$ 29,537,000	$ 38,776,000	$ 213,000,000	$ 129,471,000	$ 26,577,000	$ 1,154,000	$ 69,988,000	$ 60,602,000	$ 26,515,000	$ 30,580,000	$ 34,901,000	$ 32,708,000	$ 24,593,000	$ 22,230,000	$ 60,972,000	$ 65,335,000	$ 1,267,000	$ 43,274,000	$ 18,055,000	$ 31,466,000
Minimum number of contracts per customer																												1