FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2012

Fair Value Disclosures [Abstract]

Financial instruments carried at fair value

Financial assets and liabilities carried at fair value as of March 31, 2012 are classified in the table below in the categories described below (in thousands): 

	Level 1		Level 2		Level 3		Total
ASSETS:
Short-term investments
Foreign government securities	$	—	$	908,083	$	—	$	908,083
U.S. government securities	—		1,491,723		—		1,491,723
U.S. agency securities	—		26,822		—		26,822
Foreign exchange derivatives	—		11,723		—		11,723
Total assets at fair value	$	—	$	2,438,351	$	—	$	2,438,351

	Level 1		Level 2		Level 3		Total
LIABILITIES:
Foreign exchange derivatives	$	—	$	16,187	$	—	$	16,187
Redeemable noncontrolling interests	—		—		183,316		183,316
Total liabilities at fair value	$	—	$	16,187	$	183,316	$	199,503

Financial assets and liabilities carried at fair value as of December 31, 2011 were classified in the table below in the categories described below (in thousands):

	Level 1		Level 2		Level 3		Total
ASSETS:
Short-term investments
Foreign government securities	$	—	$	1,074,186	$	—	$	1,074,186
U.S. government securities	—		923,322		—		923,322
U.S. agency securities	—		26,951		—		26,951
U.S. corporate notes	—		368		—		368
Foreign exchange derivatives	—		60,455		—		60,455
Total assets at fair value	$	—	$	2,085,282	$	—	$	2,085,282

	Level 1		Level 2		Level 3		Total
LIABILITIES:
Foreign exchange derivatives	$	—	$	1,107	$	—	$	1,107
Redeemable noncontrolling interests	—		—		127,045		127,045
Total liabilities at fair value	$	—	$	1,107	$	127,045	$	128,152