RESTRUCTURING CHARGES - Restructuring Accrual (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Restructuring Reserve [Roll Forward]
Restructuring Reserve - Beginning Balance	$ 2,743		$ 1,300
Restructuring charges	5,070		1,889		(114)
Payments	(4,084)		(446)
Long-lived assets write-off	(230)
Reserve adjustments	106		0
Restructuring Reserve - Ending Balance	3,605		2,743		1,300
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve - Beginning Balance	82		94
Restructuring charges	4,011		452
Payments	(2,190)		(370)
Long-lived assets write-off	0
Reserve adjustments	102		(94)
Restructuring Reserve - Ending Balance	2,005		82
Contract Termination Costs
Restructuring Reserve [Roll Forward]
Restructuring Reserve - Beginning Balance	2,661		1,206
Restructuring charges	355		1,437
Payments	(1,420)		(76)
Long-lived assets write-off	0
Reserve adjustments	4		94
Restructuring Reserve - Ending Balance	1,600		2,661
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve - Beginning Balance	0	[1]	0	[1]
Restructuring charges	704	[1]	0	[1]
Payments	(474)	[1]	0	[1]
Long-lived assets write-off	(230)	[1]
Reserve adjustments	0	[1]	0	[1]
Restructuring Reserve - Ending Balance	$ 0	[1]	$ 0	[1]

[1] Other costs include a $0.2 million charge related to impairments of property and equipment resulting from the transfer of our research, development and prototype production of the Millios system to our facility in Dornstadt, Germany and the consolidation of global manufacturing in our facility in Fremont, California.