CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents ($160,967 and $105,468 restricted at December 31, 2018 and June 30, 2019, respectively)	$ 260,352	$ 272,308
Accounts receivable, net	810,431	756,059
Short-term investments ($363,840 and $350,060 restricted at December 31, 2018 and June 30, 2019, respectively)	371,678	382,582
Pharmaceutical inventory	45,611	40,818
Other current assets ($43,401 and $45,896 restricted at December 31, 2018 and June 30, 2019, respectively)	96,529	95,400
Total Current Assets	1,584,601	1,547,167
Property and equipment, net	145,182	150,748
Long-term investments ($2,854 and $22,841 restricted at December 31, 2018 and June 30, 2019, respectively)	22,841	3,161
Deferred income taxes	3,212	3,411
Other long-term assets	107,431	24,530
Goodwill	1,018,156	1,018,156
Other intangible assets, net	196,368	231,883
Total Assets	3,077,791	2,979,056
Current Liabilities:
Accounts payable	75,436	72,077
Accrued liabilities	260,980	231,356
Short-term contingent consideration	119	8,000
Medical claims payable	401,289	393,547
Other medical liabilities	166,226	169,639
Current debt, finance lease and deferred financing obligations	21,077	24,274
Total Current Liabilities	925,127	898,893
Long-term debt, finance lease and deferred financing obligations	712,650	728,608
Deferred income taxes	11,998	11,167
Tax contingencies	17,264	16,478
Long-term contingent consideration		2,124
Deferred credits and other long-term liabilities	76,482	36,483
Total Liabilities	1,743,521	1,693,753
STOCKHOLDERS' EQUITY
Preferred stock, par value $.01 per share Authorized-10,000 shares at December 31, 2018 and June 30, 2019-Issued and outstanding-none
Common stock, par value $.01 per share Authorized-100,000 shares at December 31, 2018 and June 30, 2019-Issued and outstanding-53,536 and 23,935 shares at December 31, 2018, respectively, and 54,063 and 24,401 shares at June 30, 2019, respectively	541	535
Other Stockholders' Equity:
Additional paid-in capital	1,364,693	1,326,645
Retained earnings	1,433,348	1,419,449
Accumulated other comprehensive (loss) income	415	(324)
Treasury stock, at cost, 29,601 and 29,662 shares at December 31, 2018 and June 30, 2019, respectively	(1,464,727)	(1,461,002)
Total Stockholders' Equity	1,334,270	1,285,303
Total Liabilities and Stockholders' Equity	$ 3,077,791	$ 2,979,056