Goodwill and Other Intangible Assets - Carrying Amount of Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 170,145	$ 170,145
Accumulated Amortization	37,618	26,726
Net Carrying Amount	132,527	143,419
Ducommun AeroStructures
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	19,300	19,300
Accumulated Amortization	11,330	9,084
Net Carrying Amount	7,970	10,216
Ducommun LaBarge Technologies
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	150,845	150,845
Accumulated Amortization	26,288	17,642
Net Carrying Amount	124,557	133,203
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	18 years
Gross Carrying Amount	164,500	164,500
Accumulated Amortization	33,853	23,460
Net Carrying Amount	130,647	141,040
Trade names
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	10 years
Gross Carrying Amount	3,400	3,400
Accumulated Amortization	2,720	2,380
Net Carrying Amount	680	1,020
Contract renewal
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	14 years
Gross Carrying Amount	1,845	1,845
Accumulated Amortization	967	835
Net Carrying Amount	878	1,010
Technology
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	15 years
Gross Carrying Amount	400	400
Accumulated Amortization	78	51
Net Carrying Amount	$ 322	$ 349