CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 185,777	$ 203,187
Restricted cash	167,313	236,696
Accounts receivable, less allowance for doubtful accounts of $5,447 and $5,197 at December 31, 2013 and June 30, 2014, respectively	301,869	238,185
Short-term investments (restricted investments of $117,674 and $138,929 at December 31, 2013 and June 30, 2014, respectively	147,861	175,883
Deferred income taxes	36,945	37,530
Pharmaceutical inventory	44,277	49,609
Other current assets (restricted deposits of $25,009 and $29,340 at December 31, 2013 and June 30, 2014, respectively)	72,732	48,268
Total Current Assets	956,774	989,358
Property and equipment, net	172,048	172,333
Restricted long-term investments	23,494	32,430
Other long-term assets	9,962	7,197
Goodwill	557,425	488,206
Other intangible assets, net	146,985	69,694
Total Assets	1,866,688	1,759,218
Current Liabilities:
Accounts payable	63,563	42,853
Accrued liabilities	144,588	134,652
Medical claims payable	234,645	228,341
Other medical liabilities	79,543	67,416
Current maturities of long-term capital lease obligations	2,909	3,005
Total Current Liabilities	525,248	476,267
Long-term capital lease obligations	21,947	23,720
Deferred income taxes	40,581	42,046
Tax contingencies	34,179	32,343
Contingent consideration	43,745
Deferred credits and other long-term liabilities	21,169	17,803
Total Liabilities	686,869	592,179
Redeemable non-controlling interest	8,555	10,554
Preferred stock, par value $.01 per share Authorized - 10,000 shares at December 31, 2013 and June 30, 2014 - Issued and outstanding - none
Other Stockholders' Equity:
Additional paid-in capital	973,611	922,325
Retained earnings	1,131,199	1,100,493
Accumulated other comprehensive (loss) income	20	(93)
Ordinary common stock in treasury, at cost, 19,735 shares and 20,872 shares at December 31, 2013 and June 30, 2014, respectively	(934,063)	(866,714)
Total Stockholders' Equity	1,171,264	1,156,485
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' Equity	1,866,688	1,759,218
Ordinary common stock
Current Liabilities:
Common stock	497	474
Multi-Vote common stock
Current Liabilities:
Common stock