INCOME TAXES 1 (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Components of income (loss) before income taxes
U.S.	$ (19,956)		$ 125,905		$ 102,590
Foreign	62,194		255,285		13,762
Income before income taxes	42,238		381,190		116,352
Federal
Current	10,378		2,454		(142,191)
Deferred	4,501		5,982		(88,291)
State
Current	(5)		172		58
Deferred	(494)		(2,064)		(20,041)
Foreign
Current	3,757		18,979		8,495
Deferred	(6,344)		40,677		(64,753)
Provision for (benefit from) income taxes	11,793		66,200		(306,723)
Company's effective tax rate
U.S. Federal statutory income tax rate	35.00%		35.00%		35.00%
State tax	(0.23%)		0.22%		0.65%
Effect of foreign operations	(2.55%)		(15.52%)		(40.37%)
Recognition of tax credits	(10.04%)		(2.95%)		(56.22%)
Net operating loss and future deductions not currently benefited	0.00%		0.00%		27.82%
Change of valuation allowance	1.04%		(0.09%)		(100.33%)
Audit settlements and IRS refunds	0.00%		0.20%		(129.42%)
Other, net (1)	4.70%	[1]	0.51%	[1]	(0.75%)	[1]
Effective tax provision rate	27.92%		17.37%		(263.62%)
Deferred income tax assets:
Net operating losses	53,500		33,324
Research and development, foreign tax and other tax credits	55,051		45,327
Accrued liabilities	31,519		33,124
Fixed assets	42,711		42,501
Intangible assets	8,331		12,356
Deferred income	5,007		8,391
Stock-based compensation	9,084		6,830
Unrealized foreign exchange translation	4,801		4,651
Other	4,878		4,832
Total deferred income tax assets	214,882		191,336
Deferred income tax liabilities:
Fixed assets	(55)		(57)
Deferred income	(846)		(693)
Unremitted earnings of foreign subsidiaries	(2,548)		(5,075)
Foreign losses subject to recapture	(14,837)		(15,170)
Other	(267)		0
Total deferred tax liabilities	18,553		20,995
Less valuation allowance	(41,271)		(38,742)
Net deferred income tax assets	155,058		131,599
Reported as:
Current deferred tax assets(1)	53,105	[2]	10,239	[2]
Current deferred tax liabilities(2)	(304)	[3]	0	[3]
Non-current deferred tax assets(3)	102,315	[4]	121,417	[4]
Non-current deferred tax liabilities(4)	$ (58)	[5]	$ (57)	[5]

[1] Included in Other, net, are adjustments related to return to provision true-up, unrecognized tax benefit ("UTB"), withholding taxes and non-deductible stock compensation.

[2] Included within Prepaids and other current assets on the consolidated balance sheets and short-term tax attributes.

[3] Included within Accrued and other liabilities on the consolidated balance sheets.

[4] Included within Other assets on the consolidated balance sheets and long-term tax attributes.

[5] Included within Other long-term liabilities on the consolidated balance sheets.