Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

GOODWILL AND OTHER INTANGIBLE ASSETS [Abstract]

Schedule of Goodwill [Table Text Block]

	2014			2013
Balance at beginning of year	$	455,842		$	452,351
Goodwill acquired	1,282			1,049
Foreign currency translation	(13,039		)	2,442
Balance at year end	$	444,085		$	455,842

Schedule Of Finite Lived And Indefinite Lived Intangible Assets By Major Class [Table Text Block]

	2014							2013
	Gross Amount		Accumulated Amortization			Intangibles, Net		Gross Amount		Accumulated Amortization			Intangibles, Net
Customer relationships	$	98,325	$	(28,159	)	$	70,166	$	98,374	$	(25,313	)	$	73,061
Proven technology and patents	45,588		(30,761		)	14,827		43,233		(29,763		)	13,470
Tradename (finite life)	4,140		(1,786		)	2,354		4,300		(1,619		)	2,681
Tradename (indefinite life)	24,947		—			24,947		25,108		—			25,108
Other	1,573		(1,083		)	490		757		(659		)	98
	$	174,573	$	(61,789	)	$	112,784	$	171,772	$	(57,354	)	$	114,418