FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value Disclosures [Abstract]

Financial instruments carried at fair value

Financial assets and liabilities are carried at fair value as of December 31, 2011 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	$	—	$	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 carried at fair value as of December 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	$	—	$	1,886,553	$	—	$	1,886,553
U.S. government securities	—		1,760,292		—		1,760,292
Foreign exchange derivatives	—		1,038		—		1,038
Total assets at fair value	$	—	$	3,647,883	$	—	$	3,647,883

	Level 1		Level 2		Level 3		Total
LIABILITIES:
Foreign exchange derivatives	$	—	$	63,151	$	—	$	63,151
Redeemable noncontrolling interests	—		—		160,287		160,287
Total liabilities at fair value	$	—	$	63,151	$	160,287	$	223,438