INVESTMENTS (Tables)

3 Months Ended

Mar. 31, 2014

Investments, Debt and Equity Securities [Abstract]

Short-term investments

The following table summarizes, by major security type, the Company's short-term investments as of December 31, 2013 (in thousands): 

	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for sale securities
Foreign government securities	$	4,019,530	$	233	$	(356	)	$	4,019,407
U.S. government securities	1,443,083		250		(20		)	1,443,313
Total	$	5,462,613	$	483	$	(376	)	$	5,462,720

The following table summarizes, by major security type, the Company's short-term investments as of March 31, 2014 (in thousands): 

	Cost		Gross  Unrealized  Gains		Gross  Unrealized Losses			Fair Value
Available for sale securities
Foreign government securities	$	3,823,066	$	242	$	(328	)	$	3,822,980
U.S. government securities	1,599,045		354		(21		)	1,599,378
Total	$	5,422,111	$	596	$	(349	)	$	5,422,358