Goodwill - Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Gross goodwill		$ 242,213
Accumulated goodwill impairment		(80,273)
Balance at December 31, 2013	161,940	161,940
Balance at September 27, 2014	161,940	161,940
Ducommun AeroStructures
Goodwill [Roll Forward]
Gross goodwill		57,243
Accumulated goodwill impairment		0
Balance at December 31, 2013	57,243	57,243
Balance at September 27, 2014	57,243	57,243
Ducommun LaBarge Technologies
Goodwill [Roll Forward]
Gross goodwill		184,970
Accumulated goodwill impairment		(80,273)
Balance at December 31, 2013	104,697	104,697
Balance at September 27, 2014	$ 104,697	$ 104,697

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

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-Section 45

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

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- Definition

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)

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

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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.

+ References

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