Restructuring Charges (Tables)

12 Months Ended

Dec. 31, 2015

Restructuring and Related Activities [Abstract]

Summary of Accrued Restructuring Charges

A summary of the movement in the 2004 accrued restructuring charges during the year ended December 31, 2013 is outlined as follows (in thousands):

Accrued restructuring charge as of December 31, 2012	$	5,679
Accretion expense	137
Restructuring charge adjustments	(4,837		)
Cash payments	(979		)
Accrued restructuring charge as of December 31, 2013	$	—