Goodwill (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The carrying amounts of our goodwill, all in our Electronic Systems segment, were as follows:

	(In thousands)
Gross goodwill	$	164,276
Accumulated goodwill impairment	(81,722		)
Balance at December 31, 2016	82,554
Goodwill from acquisition during the period	34,881
Balance at September 30, 2017	$	117,435