Restructuring and Other Charges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ (268)	$ 403	$ 3,765	$ 1,256
Business Combination, Integration Related Costs	435	539	428	992
Restructuring and Business Combination Related Expenses, Facility Reductions	392	0	392	(6)
Restructuring and Business Combination Related Expenses, Fair Value Adjustments to Continuous Computing		(127)		(127)
Restructuring and Business Combination Related Expenses, Non-Recurring Legal Expenses	0	0	109	0
Restructuring and acquisition-related charges, net	$ 559	$ 815	$ 4,694	$ 2,115