Restructuring and Other Charges - Restructuring Reserve Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 655		$ 1,456	$ 3,779
Restructuring and Business Combination Related Expenses, Non-Recurring Legal Expenses	0	$ 0	0	109
Business Combination, Integration Related Costs	0	134	146	562
Restructuring and Business Combination Related Expenses, Facility Reductions	0	$ 0	0	$ 392
Balance accrued as of December 31, 2013			664
Restructuring Charges			1,456
Restructuring Reserve, Accrual Adjustment			0
Expenditures			(1,836)
Balance accrued as of September 30, 2014	284		284
Severance, Payroll Taxes and Other Employee Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Balance accrued as of December 31, 2013			82
Restructuring Charges			1,456
Restructuring Reserve, Accrual Adjustment			0
Expenditures			(1,375)
Balance accrued as of September 30, 2014	163		163
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			(461)
Balance accrued as of September 30, 2014	$ 121		$ 121