FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2011

Fair Value Disclosures [Abstract]

Financial instruments carried at fair value

Financial assets carried at fair value as of December 31, 2011 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	$	—	$	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

Financial assets and liabilities are carried at fair value as of December 31, 2010 are classified in the tables below in the categories described below (in thousands):

	Level 1		Level 2		Level 3		Total
ASSETS:
Short-term investments:
Foreign government securities	$	—	$	683,318	$	—	$	683,318
U.S. government securities	—		469,208		—		469,208
U.S. agency securities	—		109,905		—		109,905
U.S. corporate notes	—		40,820		—		40,820
Long-term investments	—		394		—		394
Foreign exchange derivatives	—		4,970		—		4,970
Total assets at fair value	$	—	$	1,308,615	$	—	$	1,308,615

	Level 1		Level 2		Level 3		Total
LIABILITIES:
Foreign exchange derivatives	$	—	$	6,995	$	—	$	6,995
Redeemable noncontrolling interests	—		—		45,751		45,751
Total liabilities at fair value	$	—	$	6,995	$	45,751	$	52,746