Goodwill (Detail) - USD ($) $ in Thousands	Oct. 03, 2015	Dec. 31, 2014	Sep. 27, 2014
Goodwill [Line Items]
Gross goodwill	$ 239,291	$ 239,291
Accumulated goodwill impairment	(81,722)	(81,722)
Goodwill	157,569	157,569	$ 157,569
Ducommun AeroStructures
Goodwill [Line Items]
Gross goodwill	57,243	57,243
Accumulated goodwill impairment	0	0
Goodwill	57,243	57,243
Ducommun LaBarge Technologies
Goodwill [Line Items]
Gross goodwill	182,048	182,048
Accumulated goodwill impairment	(81,722)	(81,722)
Goodwill	$ 100,326	$ 100,326

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a,h)

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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