Business Segment Information - Segment Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Total Assets	$ 764,199	$ 780,089
Goodwill and Intangibles	327,405	338,296
Ducommun AeroStructures
Segment Reporting Information [Line Items]
Total Assets	241,502	248,326
Goodwill and Intangibles	65,213	67,459
Ducommun LaBarge Technologies
Segment Reporting Information [Line Items]
Total Assets	444,224	465,217
Goodwill and Intangibles	262,192	270,837
Corporate Administration
Segment Reporting Information [Line Items]
Total Assets	$ 78,473	$ 66,546