Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues
Health plan services premiums	$ 2,881,345	$ 2,632,069
Government contracts	144,090	134,512
Net investment income	11,102	29,551
Administrative services fees and other income	2,398	905
Total revenues	3,038,935	2,797,037
Expenses
Health plan services (excluding depreciation and amortization)	2,402,342	2,268,736
Government contracts	131,974	125,475
General and administrative	361,023	245,235
Selling	64,152	58,561
Depreciation and amortization	9,663	9,439
Interest	7,821	8,288
Total expenses	2,976,975	2,715,734
Income from operations before income taxes	61,960	81,303
Income tax provision	33,173	31,253
Net income	$ 28,787	$ 50,050
Net income per share:
Basic	$ 0.36	$ 0.63
Diluted	$ 0.36	$ 0.62
Weighted average shares outstanding:
Basic	79,802	79,508
Diluted	80,922	80,489