Leadership Changes and Restructuring Activities (Details 2) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2014
Restructuring Cost and Reserve [Line Items]
Additional severance and other related charges	$ 588	$ 1,039
Non-cash adjustment		(668)	$ (332)
Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Balance, January 1, 2015		2,408
Additional severance and other related charges		1,039
Accretion		38
Cash payments		(1,053)
Non-cash adjustment		(107)
Balance, June 30, 2015	$ 2,325	$ 2,325