Business Segment Information - Financial Information by Reportable Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended									12 Months Ended
	Dec. 31, 2013		Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 31, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Segment Reporting Information [Line Items]
Net Sales	$ 187,975		$ 181,288	$ 191,472	$ 175,915	$ 193,892	$ 184,097	$ 184,705	$ 184,343	$ 736,650		$ 747,037		$ 580,914
Segment Operating Income (Loss)										54,303	[1]	69,490	[1]	(7,592)	[1]
Corporate General and Administrative Expenses										(16,735)	[1],[2],[3]	(14,677)	[1],[2],[3]	(26,535)	[1],[2],[3]
Operating Income (Loss)										37,568		54,813		(34,127)
Depreciation and Amortization Expenses										30,926		29,413		21,458
Capital Expenditures										13,403		15,813		14,536
Ducommun AeroStructures
Segment Reporting Information [Line Items]
Net Sales										315,232		309,982		292,759
Segment Operating Income (Loss)										18,122	[1],[4]	28,792	[1],[4]	25,798	[1],[4]
Operating Income (Loss)	14,100	[1],[4]
Depreciation and Amortization Expenses										12,406		10,313		9,953
Capital Expenditures										8,287		7,950		8,798
Ducommun LaBarge Technologies
Segment Reporting Information [Line Items]
Net Sales										421,418		437,055		288,155
Segment Operating Income (Loss)										36,181	[1],[2],[5]	40,698	[1],[2],[5]	(33,390)	[1],[2],[5]
Depreciation and Amortization Expenses										18,346		18,934		11,445
Capital Expenditures										5,000		7,809		5,454
Corporate Administration
Segment Reporting Information [Line Items]
Depreciation and Amortization Expenses										174		166		60
Capital Expenditures										$ 116		$ 54		$ 284

[1] Includes cost not allocated to either the DLT or DAS operating segments.

[2] The 2012 and 2011 periods include merger-related transaction costs of $0.3 million and $12.4 million, respectively, in Corporate General and Administrative Expenses related to the LaBarge Acquisition. In addition, the 2012 and 2011 periods include $0.4 million and $3.7 million, respectively, in DLT resulting from a change-in-control provision for certain key executives and employees arising in connection with the LaBarge Acquisition.

[3] The 2013, 2012 and 2011 periods include $1.2 million, $0.6 million and $0.5 million, respectively, of workers' compensation insurance expenses included in gross profit and not allocated to the operating segments.

[4] The 2013 period includes $14.1 million in charges related to fourth quarter asset impairment charges of $5.7 million on the Embraer Legacy 450/500 contracts and $1.3 million on the Boeing 777 wing tip contract; forward loss reserves of $3.9 million on the Embraer Legacy 450/500 contracts and $1.3 million on the Boeing 777 wing tip contract; and inventory write-offs of $1.9 million on the Embraer Legacy 450/500 contracts.

[5] Includes approximately $54.3 million of goodwill impairment expense in 2011.