Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 312,579	$ 230,253
Investments-available-for-sale (amortized cost: 2012-$XX, 2011-$1,528,091)	1,671,678	1,557,997
Premiums receivable, net of allowance for doubtful accounts (2012-$XX, 2011-$3,318)	310,804	251,911
Amounts receivable under government contracts	206,560	234,740
Other receivables	244,924	225,004
Deferred taxes	40,647	46,659
Other assets	151,042	117,876
Total current assets	2,938,234	2,664,440
Property and equipment, net	174,932	145,302
Goodwill	565,886	605,886
Other intangible assets, net	18,128	20,699
Deferred taxes	5,737	49,685
Investments-available-for-sale-noncurrent (amortized cost: 2012-$0, 2011-$2,450)	0	2,147
Other noncurrent assets	107,386	119,510
Total Assets	3,810,303	3,607,669
LIABILITIES AND STOCKHOLDERS' EQUITY
Reserves for claims and other settlements	1,032,248	912,126
Health care and other costs payable under government contracts	58,410	88,440
Unearned premiums	128,194	176,733
Accounts payable and other liabilities	325,636	240,281
Total current liabilities	1,544,488	1,417,580
Senior notes payable	399,044	398,890
Borrowings under revolving credit facility	100,000	112,500
Other noncurrent liabilities	220,489	235,553
Total Liabilities	2,264,021	2,164,523
Commitments and contingencies
Stockholders' Equity:
Preferred stock ($0.001 par value, 10,000 shares authorized, none issued and outstanding)	0	0
Common stock ($0.001 par value, 350,000 shares authorized; issued 2012-XX shares; 2011-146,804 shares)	149	147
Additional paid-in capital	1,323,150	1,278,037
Treasury common stock, at cost (2012-XX shares of common stock; 2011-64,847 shares of common stock)	(2,092,459)	(2,023,129)
Retained earnings	2,287,511	2,171,459
Accumulated other comprehensive income	27,931	16,632
Total Stockholders' Equity	1,546,282	1,443,146
Total Liabilities and Stockholders' Equity	$ 3,810,303	$ 3,607,669