Segment Information Schedule of Operating Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Health Plans:
Premium revenue	$ 2,316,759	$ 1,584,656	$ 6,424,238	$ 4,583,818
Premium tax revenue	81,240	43,723	203,053	127,606
Health insurer fee revenue	29,427	0	67,785	0
Investment income	2,041	1,740	5,615	4,884
Other revenue	2,327	5,860	8,523	16,476
Molina Medicaid Solutions:
Service revenue	52,557	51,100	156,419	150,528
Total revenue	2,484,351	1,687,079	6,865,633	4,883,312
Income from continuing operations before income tax:
Health Plans	39,779	24,926	96,473	139,245
Other expenses, net	15,282	13,508	43,044	41,583
Income from continuing operations before income tax expense	24,497	11,418	53,429	97,662
Health Plans
Health Plans:
Premium revenue	2,316,759	1,584,656	6,424,238	4,583,818
Premium tax revenue	81,240	43,723	203,053	127,606
Health insurer fee revenue	29,427	0	67,785	0
Investment income	2,041	1,740	5,615	4,884
Other revenue	2,327	5,860	8,523	16,476
Income from continuing operations before income tax:
Health Plans	29,874	16,929	65,879	118,600
Molina Medicaid Solutions
Molina Medicaid Solutions:
Service revenue	52,557	51,100	156,419	150,528
Income from continuing operations before income tax:
Health Plans	$ 9,905	$ 7,997	$ 30,594	$ 20,645