Goodwill And Intangible Assets (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2013

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Changes In Carrying Amounts Of Goodwill

The changes in carrying amounts of goodwill for the nine months ended September 30, 2013 are as follows (in thousands):

Balance as of January 1, 2013	$	407,825
Goodwill acquired (Note 3)	31,420
Purchase accounting adjustments	2,329
Foreign exchange translation	113
Balance as of September 30, 2013	$	441,687

Schedule Of Intangible Assets With Indefinite Lives

Intangible Assets with Indefinite Lives:

	September 30, 2013		December 31, 2012
Trade name	$	27,379	$	27,379
Other	5,432		5,433
Total	$	32,811	$	32,812

Finite-Lived Intangible Assets By Major Class

As of September 30, 2013, intangible assets subject to amortization relate primarily to the following (in thousands):

	Weighted-Average Amortization Period	Historical Cost		Accumulated Amortization			Net
Tradenames	17.1 years	$	66,852	$	(9,812	)	$	57,040
Patent and patent licenses	7.8 years	47,173		(28,470		)	18,703
Customer relationships	7.1 years	117,231		(33,208		)	84,023
Other purchased intangibles	4.0 years	16,094		(11,860		)	4,234
Total		$	247,350	$	(83,350	)	$	164,000

As of December 31, 2012, intangible assets subject to amortization relate primarily to the following (in thousands):

	Weighted-Average Amortization Period	Historical Cost		Accumulated Amortization			Net
Tradenames	17.7 years	$	50,257	$	(6,227	)	$	44,030
Patent and patent licenses	8.2 years	44,048		(24,719		)	19,329
Customer relationships	7.0 years	86,473		(21,750		)	64,723
Other purchased intangibles	4.4 years	13,322		(8,900		)	4,422
Total		$	194,100	$	(61,596	)	$	132,504