Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues
Health plan services premiums	$ 2,578,689	$ 2,487,767	$ 7,818,565	$ 7,379,951
Government contracts	169,811	175,845	527,421	1,221,987
Net investment income	16,355	15,188	63,356	64,114
Administrative service fees and other income	1,854	2,174	16,300	6,974
Divested operations and services revenue	12,863	10,976	25,668	34,446
Total revenues	2,779,572	2,691,950	8,451,310	8,707,472
Expenses
Health plan services (excluding depreciation and amortization)	2,281,388	2,149,310	6,983,502	6,389,881
Government contracts	151,815	127,884	467,531	1,080,864
General and administrative	222,425	215,952	688,457	822,083
Selling	61,053	57,965	181,004	175,947
Depreciation and amortization	7,907	6,937	22,722	24,066
Interest	8,021	7,774	24,895	23,632
Divested operations and services expenses	17,587	32,873	59,973	133,558
Adjustment to loss on sale of Northeast health plan subsidiaries	0	315	0	(40,822)
Total expenses	2,750,196	2,599,010	8,428,084	8,609,209
Income (loss) from continuing operations before income taxes	29,376	92,940	23,226	98,263
Income tax provision (benefit)	8,898	35,131	5,712	80,268
Income (loss) from continuing operations	20,478	57,809	17,514	17,995
Discontinued operations:
Income (loss) from discontinued operation, net of tax	0	4,003	(18,452)	(6,078)
Gain on sale of discontinued operation, net of tax	(2,450)	0	116,990	0
Income (loss) from discontinued operation, net of tax	(2,450)	4,003	98,538	(6,078)
Net income (loss)	$ 18,028	$ 61,812	$ 116,052	$ 11,917
Net income (loss) per share - basic:
Income (loss) from continuing operations	$ 0.25	$ 0.66	$ 0.21	$ 0.20
Income (loss) from discontinued operation, net of tax	$ (0.03)	$ 0.05	$ 1.20	$ (0.07)
Net income (loss) per share - basic	$ 0.22	$ 0.71	$ 1.41	$ 0.13
Net income (loss) per share - diluted:
Income (loss) from continuing operations	$ 0.25	$ 0.65	$ 0.21	$ 0.20
Income (loss) from discontinued operation, net of tax	$ (0.03)	$ 0.05	$ 1.18	$ (0.07)
Net income (loss) per share - diluted	$ 0.22	$ 0.70	$ 1.39	$ 0.13
Weighted average shares outstanding:
Basic	81,607	87,675	82,451	90,479
Diluted	82,039	88,874	83,447	91,899