SEGMENT AND GEOGRAPHIC INFORMATION, Revenue and Loss From Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 segment	Jun. 30, 2013	Dec. 31, 2013 business_unit
Segment Reporting Information [Line Items]
Number of reportable segments			2
Number of business units					4
Loss from operations:	$ (304)	$ (2,951)	$ (9,045)	$ (15,157)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue:	85,432	79,464	168,403	157,409
Loss from operations:	(304)	(2,951)	(9,045)	(15,157)
Operating Segments [Member] | Affymetrix Core [Member]
Segment Reporting Information [Line Items]
Revenue:	62,085	57,237	121,532	113,157
Loss from operations:	854	265	(6,734)	(7,789)
Operating Segments [Member] | eBioscience [Member]
Segment Reporting Information [Line Items]
Revenue:	23,347	22,227	46,871	44,252
Loss from operations:	$ (1,158)	$ (3,216)	$ (2,311)	$ (7,368)