RESTRUCTURING CHARGES - Narrative (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended				25 Months Ended
	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring cost recorded to date	$ 3,662				$ 10,500
Restructuring charges	3,662	5,070		1,889
Other Charges Related Restructuring	600
Restructuring Reserve - Beginning Balance	3,605	2,743		1,300		1,103
Payments	(6,127)	(4,084)		(446)
Restructuring reserve, current	812	3,437			812
Accrued liabilities, current
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, current	812	3,437			812	812
Other liabilities, non current
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, noncurrent	298	169			298	298
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,413	4,011
Restructuring Reserve - Beginning Balance	2,005	82		94		0
Payments	(4,406)	(2,190)		(370)
Employee Severance and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,837	4,715		452
Payments	(4,805)	(2,663)
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	825	355		1,437
Restructuring Reserve - Beginning Balance	1,600	2,661		1,206		1,103
Payments	(1,322)	(1,420)		(76)
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	424	704	[1]	0
Restructuring Reserve - Beginning Balance	0	0		0		0
Payments	$ (399)	$ (474)		$ 0

[1] $0.2 million charge related to impairment 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.