FIXED ASSETS (Tables)

3 Months Ended

Mar. 31, 2016

Property, Plant and Equipment [Abstract]

Schedule of fixed assets summarized by major category

Fixed assets, summarized by major category, consist of the following (in thousands):

	March 31,			December 31,
	2016			2015
Machinery and laboratory equipment	$	31,086		$	29,864
Leasehold improvements	32,359			30,834
Computer equipment and software	4,724			4,007
Office furniture and equipment	1,440			1,439
Construction in progress	54,234			49,097
Total	123,843			115,241
Less: accumulated depreciation	(27,997		)	(24,917		)
Fixed assets, net	$	95,846		$	90,324