FIXED ASSETS (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Schedule of fixed assets summarized by major category

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

	December 31,
	2016			2015
Machinery and laboratory equipment	$	34,309		$	29,864
Leasehold improvements	33,787			30,834
Computer equipment and software	5,623			4,007
Office furniture and equipment	1,606			1,439
Construction in progress	63,201			49,097
Total	138,526			115,241
Less: accumulated depreciation	(37,510		)	(24,917		)
Fixed assets, net	$	101,016		$	90,324