RESTRUCTURING (Tables)

3 Months Ended

Mar. 31, 2017

Restructuring And Related Activities [Abstract]

Summary of Restructuring Expenses by Function

The following table summarizes the restructuring expenses by function for the periods indicated:

	For the Three Months Ended March 31, 2017						For the Three Months Ended March 31, 2016
	(in thousands)
	Cash		Non-cash		Total		Cash		Non-cash		Total
Research and development	$	70	$	—	$	70	$	357	$	145	$	502
General and administration		166		—		166		31		—		31
Total restructuring expenses	$	236	$	—	$	236	$	388	$	145	$	533

Summary of Restructuring Reserve

The following table summarizes the restructuring reserve for the periods indicated:

	For the Quarter Ended March 31, 2017			For the Year Ended December 31, 2016
	(in thousands)
Restructuring reserve beginning balance	$	1,588		$	—
Restructuring expenses incurred during the period		236			3,651
Amounts paid during the period		(394	)		(2,063	)
Restructuring reserve ending balance	$	1,430		$	1,588