Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of Goodwill

The changes in the carrying value of Goodwill for the nine months ended September 30, 2013 were as follows:

	Goodwill			Accumulated Impairment Losses			Total
Balance as of December 31, 2012	$	68,585		$	(48,868	)	$	19,717
Foreign currency fluctuations	(475		)	4			(471		)
Balance as of September 30, 2013	$	68,110		$	(48,864	)	$	19,246

Acquired intangible assets excluding Goodwill

The balances of acquired Intangible Assets, excluding Goodwill, as of September 30, 2013 and December 31, 2012 were as follows:

	Customer Lists			Trade Name			Technology			Total
Balance as of September 30, 2013
Original cost	$	23,538		$	4,758		$	7,283		$	35,579
Accumulated amortization	(11,130		)	(1,858		)	(3,180		)	(16,168		)
Carrying value	$	12,408		$	2,900		$	4,103		$	19,411
Weighted-average original life (in years)	15			14			13
Balance as of December 31, 2012
Original cost	$	23,817		$	4,657		$	7,197		$	35,671
Accumulated amortization	(9,907		)	(1,565		)	(2,806		)	(14,278		)
Carrying value	$	13,910		$	3,092		$	4,391		$	21,393
Weighted-average original life (in years)	15			14			13

Estimated aggregate amortization expense of Intangible Assets

Estimated aggregate amortization expense based on the current carrying value of amortizable Intangible Assets for each of the five succeeding years and thereafter is as follows:

Remaining 2013	$	478
2014	1,912
2015	1,896
2016	1,894
2017	1,863
Thereafter	11,368
Total	$	19,411