Business Segment Information - Segment Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 28, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Total Assets	$ 759,254	$ 764,199
Goodwill and Intangibles	322,225	327,405
Ducommun AeroStructures
Segment Reporting Information [Line Items]
Total Assets	243,974	241,502
Goodwill and Intangibles	64,355	65,213
Ducommun LaBarge Technologies
Segment Reporting Information [Line Items]
Total Assets	443,034	444,224
Goodwill and Intangibles	257,870	262,192
Corporate Administration
Segment Reporting Information [Line Items]
Total Assets	$ 72,246	$ 78,473