CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 179,219	$ 189,464
Restricted cash	189,468	226,554
Accounts receivable, less allowance for doubtful accounts of $4,612 and $4,513 at December 31, 2012 and June 30, 2013, respectively	165,378	138,253
Short-term investments (restricted investments of $88,332 and $125,922 at December 31, 2012 and June 30, 2013, respectively)	228,634	201,127
Deferred income taxes	31,567	31,698
Pharmaceutical inventory	49,877	45,727
Other current assets (restricted deposits of $20,846 and $24,927 at December 31, 2012 and June 30, 2013, respectively)	46,869	38,595
Total Current Assets	891,012	871,418
Property and equipment, net	163,931	136,548
Restricted long-term investments	26,230	32,563
Other long-term assets	15,427	9,730
Goodwill	426,939	426,939
Other intangible assets, net	30,347	34,935
Total Assets	1,553,886	1,512,133
Current Liabilities:
Accounts payable	12,146	17,081
Accrued liabilities	74,646	100,778
Medical claims payable	205,152	198,429
Other medical liabilities	76,575	76,914
Current maturities of long-term capital lease obligations	2,834
Total Current Liabilities	371,353	393,202
Long-term capital lease obligations	24,673
Deferred income taxes	34,384	34,086
Tax contingencies	62,858	60,697
Deferred credits and other long-term liabilities	7,188	6,815
Total Liabilities	500,456	494,800
STOCKHOLDERS' EQUITY
Preferred stock, par value $.01 per share Authorized - 10,000 shares at December 31, 2012 and June 30, 2013 - Issued and outstanding - none
Other Stockholders' Equity:
Additional paid-in capital	872,977	848,238
Retained earnings	1,034,770	975,232
Accumulated other comprehensive loss	(182)	(35)
Ordinary common stock in treasury, at cost, 18,575 and 19,531 shares at December 31, 2012 and June 30, 2013, respectively	(854,599)	(806,561)
Total Stockholders' Equity	1,053,430	1,017,333
Total Liabilities and Stockholders' Equity	1,553,886	1,512,133
Ordinary common stock
STOCKHOLDERS' EQUITY
Common stock	464	459
Multi-Vote common stock
STOCKHOLDERS' EQUITY
Common stock