Restructuring and Other Charges - Restructuring Reserve Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 118		$ 800	$ 3,765
Restructuring and Business Combination Related Expenses, Non-Recurring Legal Expenses	0	$ 0	0	109
Business Combination, Integration Related Costs	147	435	147	428
Restructuring and Business Combination Related Expenses, Facility Reductions	0	$ 392	0	$ 392
Balance accrued as of December 31, 2013			664
Restructuring Charges			800
Restructuring Reserve, Accrual Adjustment			0
Expenditures			(1,252)
Balance accrued as of September 30, 2014	212		212
Restructuring Reserve, Noncurrent	100		100
Severance, Payroll Taxes and Other Employee Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Balance accrued as of December 31, 2013			82
Restructuring Charges			800
Restructuring Reserve, Accrual Adjustment			0
Expenditures			(819)
Balance accrued as of September 30, 2014	63		63
Lease Abandonment Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance accrued as of December 31, 2013			582
Restructuring Charges			0
Restructuring Reserve, Accrual Adjustment			0
Expenditures			(433)
Balance accrued as of September 30, 2014	$ 149		$ 149