SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) Region ProductLine	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
SEGMENT INFORMATION [Abstract]
Number of geographic regions | Region			5
Number of product lines | ProductLine			3
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 560,209	$ 650,027	$ 1,103,541	$ 1,321,088
North Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	172,943	195,995	345,009	391,456
Greater China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	200,136	229,869	387,503	508,798
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	83,468	89,911	163,340	169,820
South Asia/Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	68,023	81,653	138,840	152,847
Europe - By Region [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	35,639	52,599	68,849	98,167
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	63,920	77,198	127,209	158,659
Long-lived assets	15,069		15,069		$ 13,768
South Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	109,023	118,797	217,800	232,797
Long-lived assets	53,244		53,244		46,626
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	58,580	61,056	117,568	115,878
Long-lived assets	274,867		274,867		287,103
Mainland China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	149,251	$ 153,795	283,448	$ 366,012
Long-lived assets	$ 117,237		$ 117,237		$ 103,445