Goodwill (Tables)

9 Months Ended

Sep. 26, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Changes in Carrying Amount of Goodwill

The following table summarizes the changes in the carrying amount of goodwill for the nine months ended September 26, 2020:

(In thousands)	December 31, 2019		Acquisition Adjustments		Impairment Charges		Foreign Currency Translation		September 26, 2020
Aerospace	$	123,038	$	—	$	(86,312)	$	(178)	$	36,548
Test Systems	21,932		(298)		—		—		21,634
	$	144,970	$	(298)	$	(86,312)	$	(178)	$	58,182