Restructuring and Other Charges (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 14	$ 258	$ 3,779	$ 1,514
Business Combination, Integration Related Costs	134	728	562	1,671
Restructuring and Business Combination Related Expenses, Facility Reductions	0	0	392	(6)
Restructuring and Business Combination Related Expenses, Fair Value Adjustments to Continuous Computing		(29)		(156)
Restructuring and Business Combination Related Expenses, Non-Recurring Legal Expenses	0	372	109	421
Restructuring and acquisition-related charges, net	$ 148	$ 1,329	$ 4,842	$ 3,444