Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2014

Payables and Accruals [Abstract]

Accrued Liabilities

ACCRUED LIABILITIES

Accrued liabilities consisted of the following (in thousands):

	June 30, 2014		December 31, 2013
Accrued compensation and related liabilities	$	7,971	$	7,959
Accrued interest	3,494		2,166
Accrued professional fees	760		350
Accrued costs under the Collaboration Agreement	1,719		2,629
Other accrued liabilities	2,726		1,901
Total accrued liabilities	$	16,670	$	15,005