Goodwill And Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2011

Goodwill And Intangible Assets [Abstract]

Schedule Of Goodwill

	Nine Months  Ended September 30, 2011			Year Ended December 31, 2010
(in thousands)
Balance at beginning of period	$	810,285		$	761,978
Additions		10,255			47,469
Adjustments to purchase price allocations		3,932			—
Translation and other adjustments		(2,741	)		838
Balance at end of period	$	821,731		$	810,285

Changes To Intangible Assets

	Nine Months Ended			Year Ended
	September 30,			December 31,
(in thousands)	2011			2010
Balance at beginning of period, net of accumulated amortization	$	162,636		$	118,731
Purchase price allocations		5,980			62,617
Amortization expense		(16,200	)		(17,126	)
Currency translation		137			(1,586	)
Balance at end of period, net of accumulated amortization	$	152,553		$	162,636

Summary Of Intangible Assets

(in thousands)	Weighted  Average Amortization Period (in  years)
			September 30, 2011						December 31, 2010
			Gross Asset		Accumulated Amortization		Net		Gross Asset		Accumulated Amortization		Net
Intellectual property rights		10.7	$	119,662	$	61,941	$	57,721	$	118,805	$	57,514	$	61,291
Customer relationships and backlog		6.9		137,841		47,938		89,903		134,401		49,129		85,272
Drawings		0.7		10,825		10,183		642		10,825		10,699		126
Other		5.2		32,379		28,092		4,287		31,692		15,745		15,947
Total		8.2	$	300,707	$	148,154	$	152,553	$	295,723	$	133,087	$	162,636