ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Components of accumulated other comprehensive income
Balance at the beginning of the period	$ 98,836	$ 43,574	$ 25,669
Foreign currency translation adjustment	(304,447)	54,640	17,220
Pension adjustment	(545)
Balance at the end of the period	(202,430)	98,836	43,574
Auction rate securities
Components of accumulated other comprehensive income
Unrealized holding gain on securities		554	155
Available-for-sale equity securities
Components of accumulated other comprehensive income
Unrealized holding gain on securities	22,780
Available-for-sale debt securities
Components of accumulated other comprehensive income
Unrealized holding gain on securities	(114)	(321)	802
Acquisition of noncontrolling interest	2,206
Balance at the end of the period	2,206
Foreign Currency Translation Adjustment
Components of accumulated other comprehensive income
Balance at the beginning of the period	98,926	44,286	27,066
Foreign currency translation adjustment	(304,447)	54,640	17,220
Balance at the end of the period	(205,521)	98,926	44,286
Net Unrealized Holding Gain (Loss) on Securities | Auction rate securities
Components of accumulated other comprehensive income
Balance at the beginning of the period		(943)	(1,829)
Unrealized holding gain on securities		554	155
Reclassification to net income		389	731
Balance at the end of the period			(943)
Net Unrealized Holding Gain (Loss) on Securities | Available-for-sale equity securities
Components of accumulated other comprehensive income
Unrealized holding gain on securities	22,780
Reclassification to net income	(21,146)
Balance at the end of the period	1,634
Net Unrealized Holding Gain (Loss) on Securities | Available-for-sale debt securities
Components of accumulated other comprehensive income
Balance at the beginning of the period	(90)	231	432
Unrealized holding gain on securities	(114)	(321)	802
Reclassification to net income			(1,003)
Balance at the end of the period	(204)	(90)	231
Pension Adjustment
Components of accumulated other comprehensive income
Pension adjustment	$ (545)