Restructuring and Other Charges - Restructuring Charges By Statement of Operations Account (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of restructuring and related costs
Restructuring Charges	$ 15,241	$ 26,182	$ 4,183
Cost Of Sales Services [Member]
Schedule of restructuring and related costs
Restructuring Charges	6,226	10,678	540
Cost Of Sales Products [Member]
Schedule of restructuring and related costs
Restructuring Charges	(1,849)	3,905	1,163
Selling, General and Administrative Expenses [Member]
Schedule of restructuring and related costs
Restructuring Charges	9,037	11,607	3,809
Research, development and engineering expense [Member]
Schedule of restructuring and related costs
Restructuring Charges	1,827	(8)	(143)
Gain on sale of real estate [Member]
Schedule of restructuring and related costs
Restructuring Charges	$ 0	$ 0	$ (1,186)