Accrued Restructuring (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 2,916	$ 1,131	$ 4,081	$ 2,745
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	(395)	(4,107)	(1,740)	5,145
Facility Reductions	(155)	259	(155)	1,590
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down	0	0	(2,868)	0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	0	0	(1,532)	0
Business Combination, Integration Related Costs	515	0	515	576
Restructuring and acquisition-related charges, net	$ 2,881	$ (2,717)	$ 4,037	$ (234)