Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The carrying amounts of goodwill, all in our Electronic Systems segment, for the years ended December 31, 2017 and 2016 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 December 31, 2017	$	117,435

Other Intangible Assets

Intangible assets are as follows:

		(In thousands)
		December 31, 2017						December 31, 2016
	Wtd. Avg Life (Yrs)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Finite-lived assets
Customer relationships	17	$	180,300	$	67,449	$	112,851	$	159,200	$	58,352	$	100,848
Trade names	15	1,300		26		1,274		—		—		—
Contract renewal	14	1,845		1,493		352		1,845		1,362		483
Technology	15	400		184		216		400		158		242
Total		$	183,845	$	69,152	$	114,693	$	161,445	$	59,872	$	101,573

The carrying amount of other intangible assets by operating segment as of December 31, 2017 and 2016 was as follows:

	(In thousands)
	December 31, 2017						December 31, 2016
	Gross		Accumulated Amortization		Net Carrying Value		Gross		Accumulated Amortization		Net Carrying Value
Other intangible assets
Structural Systems	$	19,300	$	16,464	$	2,836	$	19,300	$	15,555	$	3,745
Electronic Systems	164,545		52,688		111,857		142,145		44,317		97,828
Total	$	183,845	$	69,152	$	114,693	$	161,445	$	59,872	$	101,573

Summary of Future Amortization Expense

Future amortization expense by operating segment is expected to be as follows:

	(In thousands)
	Structural Systems		Electronic Systems		Consolidated Ducommun
2018	$	737	$	9,420	$	10,157
2019	591		9,419		10,010
2020	490		9,348		9,838
2021	381		9,287		9,668
2022	320		9,288		9,608
Thereafter	317		65,095		65,412
	$	2,836	$	111,857	$	114,693