CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents (restricted balances of $133,597 and $81,776 at December 31, 2015 and 2016, respectively)	$ 304,508	$ 249,029
Accounts receivable, less allowance for doubtful accounts of $3,246 and $5,644 at December 31, 2015 and 2016, respectively	606,764	428,644
Short-term investments (restricted balances of $277,556 and $227,795 at December 31, 2015 and 2016, respectively)	297,493	322,339
Pharmaceutical inventory	58,995	50,749
Other current assets (restricted balances of $27,752 and $38,785 at December 31, 2015 and 2016, respectively)	51,507	46,921
Total Current Assets	1,319,267	1,097,682
Property and equipment, net	172,524	174,745
Long-term investments (restricted balances of $3,826 and $6,306 at December 31, 2015 and 2016, respectively)	7,760	3,826
Deferred income taxes	3,125	26,836
Other long-term assets	12,725	11,207
Goodwill	742,054	621,390
Other intangible assets, net	186,232	133,374
Total Assets	2,443,687	2,069,060
Current Liabilities:
Accounts payable	95,635	86,484
Accrued liabilities	202,176	139,726
Short-term contingent consideration	9,354	91,623
Medical claims payable	184,136	250,449
Other medical liabilities	197,856	136,939
Current debt maturities and capital lease obligations	403,693	19,014
Total Current Liabilities	1,092,850	724,235
Long-term debt and capital lease obligations	214,686	238,295
Tax contingencies	13,981	12,677
Long-term contingent consideration	1,799	803
Deferred credits and other long-term liabilities	15,882	20,930
Total Liabilities	1,339,198	996,940
Redeemable non-controlling interest	4,770	5,937
STOCKHOLDERS' EQUITY
Preferred stock, par value $.01 per share Authorized—10,000 shares at December 31, 2015 and 2016-Issued and outstanding-none
Other Stockholders' Equity:
Additional paid-in capital	1,186,283	1,124,013
Retained earnings	1,289,288	1,211,310
Accumulated other comprehensive loss	(175)	(262)
Ordinary common stock in treasury, at cost, 26,648 shares and 28,476 shares at December 31, 2015 and 2016, respectively	(1,376,197)	(1,269,391)
Total Stockholders' Equity	1,099,719	1,066,183
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' Equity	2,443,687	2,069,060
Ordinary common stock
STOCKHOLDERS' EQUITY
Common stock	520	513
Multi-Vote common stock
STOCKHOLDERS' EQUITY
Common stock