Goodwill And Intangible Assets (Schedule Of Accumulated Amortization) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Accumulated Amortization [Line Items]
Accumulated Amortization, January 1, 2011	$ (79,597)
Amortization	(33,211)
Translation Adjustments	603
Accumulated Amortization, December 31, 2011	(112,205)
Intangible Assets, Net of Amortization, January 1, 2011	175,490
Intangible Assets, Net of Amortization, December 31, 2011	316,333
Customer Relationships [Member]
Accumulated Amortization [Line Items]
Accumulated Amortization, January 1, 2011	(40,841)
Amortization	(16,295)
Translation Adjustments	757
Accumulated Amortization, December 31, 2011	(56,379)
Technology [Member]
Accumulated Amortization [Line Items]
Accumulated Amortization, January 1, 2011	(13,117)
Amortization	(11,533)
Translation Adjustments	(88)
Accumulated Amortization, December 31, 2011	(24,738)
Trademarks [Member]
Accumulated Amortization [Line Items]
Accumulated Amortization, January 1, 2011	(9,759)
Amortization	(3,063)
Translation Adjustments	55
Accumulated Amortization, December 31, 2011	(12,767)
Patents [Member]
Accumulated Amortization [Line Items]
Accumulated Amortization, January 1, 2011	(9,274)
Amortization	(1,541)
Accumulated Amortization, December 31, 2011	(10,815)
Non-Compete Agreements [Member]
Accumulated Amortization [Line Items]
Accumulated Amortization, January 1, 2011	(5,879)
Amortization	(659)
Translation Adjustments	(121)
Accumulated Amortization, December 31, 2011	(6,659)
Engineering Drawings [Member]
Accumulated Amortization [Line Items]
Accumulated Amortization, January 1, 2011	(727)
Amortization	(120)
Accumulated Amortization, December 31, 2011	$ (847)