Goodwill Goodwill (Tables)

9 Months Ended

Sep. 30, 2012

Disclosure - Goodwill - Additional Information [Abstract]

Carrying value of goodwill by reporting segment and the activity

The carrying value of goodwill by reporting segment and the activity for the nine months ended September 30, 2012 are as follows (in thousands):

	Thermal Vision and Measurement		Raymarine		Surveillance		Detection		Integrated Systems		Total
Balance, December 31, 2011	$	251,187	$	98,364	$	90,501	$	38,162	$	20,129	$	498,343
Currency translation adjustments	1,007		2,745		306		—		—		4,058
Balance, September 30, 2012	$	252,194	$	101,109	$	90,807	$	38,162	$	20,129	$	502,401