General (Details 2) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 item	Sep. 30, 2013	Dec. 31, 2014	Mar. 31, 2014 Maricopa County Regional Behavioral Health Authority item	Sep. 30, 2014 Maricopa County Regional Behavioral Health Authority	Sep. 30, 2013 Maricopa County Regional Behavioral Health Authority	Sep. 30, 2014 Commercial Customer A Service	Sep. 30, 2013 Commercial Customer A Service	Sep. 30, 2014 Commercial Customer B Service	Sep. 30, 2013 Commercial Customer B Service	Sep. 30, 2014 Commercial Customer C Service	Sep. 30, 2013 Commercial Customer C Service	Sep. 30, 2013 Commercial Customer D Service	Sep. 30, 2014 Public Sector Customer E Service item	Sep. 30, 2013 Public Sector Customer E Service	Sep. 30, 2014 Specialty Solutions Customer A Service	Sep. 30, 2013 Specialty Solutions Customer A Service	Sep. 30, 2014 Specialty Solutions Customer F Service	Sep. 30, 2013 Specialty Solutions Customer F Service	Sep. 30, 2014 Specialty Solutions Customer G Service	Sep. 30, 2013 Specialty Solutions Customer G Service	Sep. 30, 2014 Specialty Solutions Customer H Service	Sep. 30, 2013 Specialty Solutions Customer H Service	Sep. 30, 2014 Specialty Solutions Customer I Service	Sep. 30, 2013 Specialty Solutions Customer I Service	Sep. 30, 2014 Pharmacy Management Customer J Service item	Sep. 30, 2013 Pharmacy Management Customer J Service	Sep. 30, 2014 Pharmacy Management Customer K Service	Sep. 30, 2013 Pharmacy Management Customer K Service	Sep. 30, 2014 Pharmacy Management Customer L Service	Sep. 30, 2013 Pharmacy Management Customer L Service	Sep. 30, 2014 Pharmacy Management Customer M Service
Net revenues
Projected ACA fees					$ 21,400,000
ACA fees expensed	5,400,000		16,100,000
Number of customers committed to recover economic impact of ACA fees			6
Revenues recorded associated with the accrual for the reimbursement of the economic impact of the ACA fees from its customers	8,800,000		22,900,000
Managed Care Revenue	611,400,000	673,600,000	1,935,000,000	1,957,900,000
Fee-For-Service and Cost-Plus Contracts Revenue	72,900,000	52,600,000	205,600,000	152,900,000
Block Grant Revenues	0	32,300,000	33,300,000	96,900,000
Performance-Based Revenue	1,600,000	2,700,000	7,000,000	6,100,000
Rebate Revenues	14,300,000	8,800,000	27,600,000	25,600,000
PBM Revenue	155,700,000	5,900,000	383,200,000	16,400,000
Dispensing Revenue	64,500,000	97,600,000	179,600,000	282,400,000
Significant customers
Number of members receiving behavioral healthcare management and other related services						680,000
Revenues generated	$ 923,170,000	$ 873,598,000	$ 2,777,659,000	$ 2,538,107,000			$ 213,300,000	$ 557,600,000	$ 110,138,000	$ 156,269,000	$ 138,944,000	$ 106,433,000	$ 76,863,000	$ 47,625,000	$ 58,246,000	$ 337,893,000	$ 215,396,000	$ 40,003,000	$ 1,623,000	$ 109,138,000	$ 96,402,000	$ 28,046,000	$ 43,490,000	$ 55,768,000	$ 47,161,000	$ 38,282,000	$ 34,338,000	$ 92,793,000	$ 99,599,000	$ 2,339,000	$ 68,166,000	$ 18,055,000	$ 48,527,000	$ 105,079,000
Minimum number of contracts per customer																1												1