Goodwill

During the three months ended March 31, 2013, the Company has determined that there have been no triggering events that would require an updated impairment review. The carrying value of goodwill by reporting segment and the activity for the three months ended March 31, 2013 are as follows (in thousands):



	Thermal Vision and Measurement			Raymarine			Surveillance			Detection		Integrated Systems		Total
Balance, December 31, 2012	$	253,226		$	100,744		$	90,817		$	38,162	$	20,129	$	503,078
Goodwill from 2012 acquisitions	48,342			—			—			—		—		48,342
Currency translation adjustments	(3,010		)	(3,361		)	(7		)	—		—		(6,378		)
Balance, March 31, 2013	$	298,558		$	97,383		$	90,810		$	38,162	$	20,129	$	545,042