INCOME TAXES 1 (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Components of income (loss) before income taxes
U.S.	$ 25,648	$ (19,956)	$ 125,905
Foreign	(26,161)	62,194	255,285
Income (loss) before income taxes	(513)	42,238	381,190
Federal
Current	4,805	10,378	2,454
Deferred	(10,220)	4,501	5,982
State
Current	35	(5)	172
Deferred	(124)	(494)	(2,064)
Foreign
Current	25,362	3,757	18,979
Deferred	1,684	(6,344)	40,677
Provision for income taxes	21,542	11,793	66,200
Company's effective tax rate
U.S. Federal statutory income tax rate	35.00%	35.00%	35.00%
State tax	3.56%	(0.23%)	0.22%
Effect of foreign operations	(3979.63%)	(2.55%)	(15.52%)
Recognition of tax credits	875.54%	(10.04%)	(2.95%)
Change of valuation allowance	(295.93%)	1.04%	(0.09%)
Audit settlements and IRS refunds	(828.85%)	0.00%	0.20%
Other, net (1)	(4.15%)	4.70%	0.51%
Effective tax provision rate	(4194.46%)	27.92%	17.37%
Deferred income tax assets:
Net operating losses	46,723	53,500
Research and development, foreign tax and other tax credits	75,770	55,051
Accrued liabilities	30,599	31,519
Fixed assets	46,109	42,711
Intangible assets	10,555	8,331
Deferred income	5,261	5,007
Share-based compensation	5,889	9,084
Unrealized foreign exchange translation	1,109	4,801
Other	970	4,878
Total deferred income tax assets	222,985	214,882
Deferred income tax liabilities:
Fixed assets	0	(55)
Deferred income	0	(846)
Unremitted earnings of foreign subsidiaries	0	(2,548)
Foreign losses subject to recapture	(12,054)	(14,837)
Other	0	(267)
Total deferred tax liabilities	12,054	18,553
Less valuation allowance	(41,321)	(41,271)
Net deferred income tax assets	169,610	155,058
Reported as:
Current deferred tax assets(1)	35,493	53,105
Current deferred tax liabilities(2)	(208)	(304)
Non-current deferred tax assets(3)	134,365	102,315
Non-current deferred tax liabilities(4)	$ (40)	$ (58)