OPERATING AND GEOGRAPHICAL SEGMENTS (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Geographic sources of revenue and locations of long-lived assets
Net revenue	$ 357,837	$ 461,427
Long-lived assets	270,226		274,507
Exclusions from long-lived assets
Auction-rate securities	2,251		2,251
Goodwill	67,374		67,662
Intangible assets, net	18,323		20,594
Deferred income tax assets	119,100		121,400
United States
Geographic sources of revenue and locations of long-lived assets
Net revenue	48,190	69,527
Long-lived assets	87,093		81,777
Germany
Geographic sources of revenue and locations of long-lived assets
Net revenue	50,925	60,230
Long-lived assets	20,311		20,681
France
Geographic sources of revenue and locations of long-lived assets
Net revenue	9,717	8,995
Long-lived assets	27,948		30,277
Japan
Geographic sources of revenue and locations of long-lived assets
Net revenue	9,673	14,856
China, including Hong Kong
Geographic sources of revenue and locations of long-lived assets
Net revenue	84,099	127,142
Singapore
Geographic sources of revenue and locations of long-lived assets
Net revenue	9,906	11,160
South Korea
Geographic sources of revenue and locations of long-lived assets
Net revenue	62,141	51,215
Taiwan
Geographic sources of revenue and locations of long-lived assets
Net revenue	19,871	41,659
Philippines
Geographic sources of revenue and locations of long-lived assets
Long-lived assets	66,193		71,332
Asia-Pacific
Geographic sources of revenue and locations of long-lived assets
Long-lived assets	57,015		59,906
Rest of Asia-Pacific
Geographic sources of revenue and locations of long-lived assets
Net revenue	17,210	20,796
Rest of Europe
Geographic sources of revenue and locations of long-lived assets
Net revenue	38,732	50,540
Long-lived assets	11,666		10,534
Rest of the World
Geographic sources of revenue and locations of long-lived assets
Net revenue	$ 7,373	$ 5,307