Ducommun (DCO) 10-Q 28 Oct 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 28, 2013
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	28-Sep-13
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Trading Symbol	DCO
Entity Registrant Name	DUCOMMUN INC /DE/
Entity Central Index Key	30305
Current Fiscal Year End Date	-19
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding	10,780,169

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Net Sales	$181,288	$184,097	$548,675	$553,145
Cost of Sales	148,984	148,517	446,202	447,143
Gross Profit	32,304	35,580	102,473	106,002
Selling, General and Administrative Expenses	20,351	21,340	65,175	65,891
Operating Income	11,953	14,240	37,298	40,111
Interest Expense	7,403	8,241	22,668	24,714
Income Before Taxes	4,550	5,999	14,630	15,397
Income tax expense (benefit)	-86	894	783	2,395
Net Income	$4,636	$5,105	$13,847	$13,002
Earnings Per Share
Basic earnings per share	$0.43	$0.48	$1.30	$1.23
Diluted earnings per share	$0.42	$0.48	$1.28	$1.23
Weighted-Average Number of Common Shares Outstanding
Basic	10,722	10,595	10,657	10,575
Diluted	10,917	10,633	10,785	10,588

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended			9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013		Sep. 29, 2012	Sep. 28, 2013		Sep. 29, 2012
Net Income	$4,636		$5,105	$13,847		$13,002
Other Comprehensive Loss
Amortization of actuarial loss and prior service costs, net of tax benefit of $102 and $306 for the three and nine months of 2013, respectively	-172	[1]		-516	[1]
Other Comprehensive Loss	-172			-516
Comprehensive Income	$4,464		$5,105	$13,331		$13,002
[1]	Amounts in parenthesis indicate reductions to net income upon reclassification from accumulated other comprehensive loss.

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013		Sep. 28, 2013
Amortization of actuarial loss and prior service costs, tax benefit	$102	[1]	$306	[1]
[1]	Amounts in parenthesis indicate reductions to net income upon reclassification from accumulated other comprehensive loss.

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Sep. 28, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current Assets
Cash and cash equivalents	$32,597	$46,537
Accounts receivable, net	92,637	97,300
Unbilled receivables	6,615	3,556
Inventories	148,524	148,318
Production cost of contracts	19,926	17,960
Deferred income taxes	7,110	10,459
Other current assets	16,890	10,441
Total Current Assets	324,299	334,571
Property and Equipment, Net	93,840	98,383
Goodwill	161,940	161,940
Intangibles, Net	168,188	176,356
Other Assets	11,779	13,824
Total Assets	760,046	785,074
Current Liabilities
Current portion of long-term debt	3,029	3,042
Accounts payable	49,668	52,578
Accrued liabilities	39,320	52,716
Total Current Liabilities	92,017	108,336
Long-Term Debt, Less Current Portion	340,184	362,702
Deferred Income Taxes	64,504	67,808
Other Long-Term Liabilities	22,097	23,553
Total Liabilities	518,802	562,399
Commitments and Contingencies
Shareholders' Equity
Common stock - $0.01 par value; authorized 35,000,000 shares; issued 10,923,469 shares in 2013 and 10,738,065 shares in 2012	109	107
Treasury stock - held in treasury 143,300 shares in 2013 and 2012	-1,924	-1,924
Additional paid-in capital	70,679	66,475
Retained earnings	179,332	165,485
Accumulated other comprehensive loss	-6,952	-7,468
Total Shareholders' Equity	241,244	222,675
Total Liabilities and Shareholders' Equity	$760,046	$785,074

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 28, 2013	Dec. 31, 2012
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	35,000,000	35,000,000
Common stock, shares issued	10,923,469	10,738,065
Treasury stock shares, held in treasury	143,300	143,300

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012
Cash Flows from Operating Activities
Net Income	$13,847	$13,002
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities
Depreciation and amortization	21,375	21,461
Stock-based compensation expense	1,711	1,528
Deferred income tax provision (benefit)	45	-3,600
Income tax benefit from stock-based compensation	1,250	324
Excess tax benefit from stock-based compensation	-217
Provision for (recovery of) doubtful accounts	-141	59
Other	1,434	2,080
Changes in Assets and Liabilities
Accounts receivable (increase) decrease	4,804	-6,934
Unbilled receivables increase	-3,059	-241
Inventories increase	-206	-7,962
Production cost of contracts increase	-3,396	-1,473
Other assets (increase) decrease	-5,974	6,398
Accounts payable decrease	-2,910	-3,076
Accrued and other liabilities decrease	-14,069	-10,182
Net Cash Provided by Operating Activities	14,494	11,384
Cash Flows from Investing Activities
Purchases of property and equipment	-7,321	-12,330
Proceeds from the sales of assets	123	18
Net Cash Used in Investing Activities	-7,198	-12,312
Cash Flows from Financing Activities
Repayments of term loan and other debt	-22,518	-11,464
Net cash effect of exercise related to stock options	1,246	-186
Excess tax benefit from stock-based compensation	217
Deferred financing cost paid	-181
Net Cash Used in Financing Activities	-21,236	-11,650
Net Decrease in Cash and Cash Equivalents	-13,940	-12,578
Cash and Cash Equivalents at Beginning of Period	46,537	41,449
Cash and Cash Equivalents at End of Period	$32,597	$28,871

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 28, 2013
Summary of Significant Accounting Policies	Note 1. Summary of Significant Accounting Policies
	Basis of Presentation
	The consolidated financial statements include the accounts of Ducommun Incorporated and its subsidiaries (“Ducommun”, the “Company”, “we”, “us” or “our”), after eliminating intercompany balances and transactions. The December 31, 2012 condensed consolidated balance sheet data was derived from audited financial statements, but does not contain all disclosures required by accounting principles generally accepted in the United States of America (“GAAP”).
	Our significant accounting policies were described in Part II, Item 8. “Note 1. Summary of Significant Accounting Policies” in our Annual Report on Form 10-K for the year ended December 31, 2012. We follow the same accounting policies for interim reporting, with the exception of accounting principles adopted as of January 1, 2013, as discussed below in Recent Accounting Pronouncements. The financial information included in this Quarterly Report on Form 10-Q should be read in conjunction with our consolidated financial statements and related notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2012.
	In the opinion of management, all adjustments, consisting of recurring accruals, have been made that are necessary to fairly state our condensed consolidated financial position, statements of income, comprehensive income and cash flows in accordance with GAAP for the periods covered by this Quarterly Report on Form 10-Q. The results of operations for the three and nine months ended September 28, 2013 are not necessarily indicative of the results to be expected for the full year ending December 31, 2013.
	Certain prior year reclassifications have been made to conform to the current year financial statement presentation.
	Use of Estimates
	Certain amounts and disclosures included in the condensed consolidated financial statements required management to make estimates and judgments that affect the amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities. These estimates are based on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates.
	Description of Business
	We are a global provider of engineering and manufacturing products and services primarily to the aerospace and defense industry through a wide range of products and services in the primary businesses of electronics, structures and integrated solutions. Our subsidiaries are organized into two strategic businesses, each of which is a reportable operating segment. Ducommun AeroStructures (“DAS”) designs, engineers and manufactures large, complex contoured aerospace structural components and assemblies and supplies composite and metal bonded structures and assemblies. Ducommun LaBarge Technologies (“DLT”) designs, engineers and manufactures high-reliability products used in worldwide technology-driven markets including aerospace and defense, natural resources, industrial and medical and other end-use markets. DLT’s product offerings range from prototype development to complex assemblies. Each reportable operating segment follows the same accounting principles.
	Accumulated Other Comprehensive Loss
	Accumulated other comprehensive loss, as reflected on the condensed consolidated balance sheets, was composed of cumulative pension and liability adjustments of $7.0 million and $7.5 million, net of tax, at September 28, 2013 and December 31, 2012, respectively.
	Earnings per Share
	Basic earnings per share are computed by dividing income available to common shareholders by the weighted-average number of common shares outstanding in each period. Diluted earnings per share are computed by dividing the sum of income available to common shareholders plus income associated with dilutive securities by the weighted-average number of common shares outstanding, plus any potential dilutive shares that could be issued if exercised or converted into common stock in each period.
	The net earnings and weighted-average number of common shares outstanding used to compute earnings per share were as follows:
		(In thousands, except per share amounts)
		Three Months Ended				Nine Months Ended
		September 28,		September 29,		September 28,		September 29,
		2013		2012		2013		2012
	Net earnings (a)	$	4,636	$	5,105	$	13,847	$	13,002
	Weighted-average number of common shares outstanding
	Basic weighted-average common shares outstanding (b)		10,722		10,595		10,657		10,575
	Dilutive potential common shares		195		38		128		13
	Diluted weighted-average common shares outstanding (c)		10,917		10,633		10,785		10,588
	Earnings per share
	Basic (a/b)	$	0.43	$	0.48	$	1.3	$	1.23
	Diluted (a/c)	$	0.42	$	0.48	$	1.28	$	1.23
	Potentially dilutive stock options and stock units to purchase common stock, as shown below, were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive. However, these shares may be potentially dilutive common shares in the future.
		(In thousands)
		Three Months Ended				Nine Months Ended
		September 28,		September 29,		September 28,		September 29,
		2013		2012		2013		2012
	Stock options and stock units		219		1,012		612		1,015
	Cash Equivalents
	Cash equivalents consist of highly liquid instruments purchased with original maturities of three months or less. These assets are valued at cost, which approximates fair value, which we classify as Level 1. See Fair Value below.
	Out of Period Adjustments
	During the third quarter of 2013, we determined that approximately $1.1 million of inventory had not been valued correctly at our DLT operating segment for periods originating in 2010 through the second quarter of 2013. The errors were attributed to the following quarters; $0.3 million in Q2 2010, $0.5 million in Q2 2011, $0.1 million in Q4 2012, $0.1 million in Q1 2013 and $0.1 million in Q2 2013. We assessed the materiality of these errors and concluded they were immaterial to currently forecasted annual amounts and previously reported annual and interim amounts. We corrected the errors in the third quarter of 2013 and recorded a $1.1 million charge for inventory reserves for the DLT operating segment.
	During the first quarter of 2012, we determined that approximately $0.4 million of engineering research and development costs had been capitalized in error in inventory in prior periods. We assessed the materiality of this error and concluded it was immaterial to currently reported annual and previously reported annual and interim amounts. We corrected the error in the first quarter of 2012 and did not restate our condensed consolidated financial statements for the prior annual or interim periods.
	Fair Value
	Assets and liabilities that are measured, recorded or disclosed at fair value on a recurring basis are categorized using the fair value hierarchy. The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value. Level 1, the highest level, refers to the values determined based on quoted prices in active markets for identical assets. Level 2 refers to fair values estimated using significant observable inputs. Level 3, the lowest level, includes fair values estimated using significant unobservable inputs.
	Recent Accounting Pronouncements
	New Accounting Guidance Adopted in 2013
	In February 2013, the Financial Accounting Standards Board (the “FASB”) issued guidance to improve the reporting of reclassifications out of accumulated other comprehensive income/loss. The new guidance requires an entity to report the effect of significant reclassifications out of accumulated other comprehensive income/loss on the respective line items in net income if the amount being reclassified is required under GAAP to be reclassified in its entirety to net income. For other amounts that are not required under GAAP to be reclassified in their entirety to net income in the same reporting period, cross-reference to other disclosures that provide additional detail is required. Early adoption is permitted. We adopted this new guidance effective January 1, 2013. This guidance affects disclosures only.
	In January 2013, the FASB issued guidance clarifying the scope of disclosures about offsetting assets and liabilities and requires retrospective application for all periods presented. We adopted this new guidance effective January 1, 2013. The adoption of this new guidance did not have any effect on our condensed consolidated financial statements. In December 2011, the FASB issued guidance enhancing disclosure requirements about the nature of an entity’s right to offset and related arrangements associated with its financial instruments and derivative instruments. The new guidance requires the disclosure of the gross amounts subject to rights of set-off, amounts offset in accordance with the accounting standards followed, and the related net exposure. The new guidance requires retrospective application for all comparable periods presented. We adopted this new guidance effective January 1, 2013. The adoption of this new guidance did not have any effect on our condensed consolidated financial statements.
	New Accounting Guidance Not Yet Adopted
	In July 2013, the FASB issued guidance that requires the netting of unrecognized tax benefits against a deferred tax asset for a loss or other carryforward that would apply in settlement of the uncertain tax positions. This guidance will be effective for fiscal years beginning after December 15, 2013, which will be our fiscal year 2014, with early adoption permitted. We currently expect the adoption of this guidance will reduce deferred tax assets by approximately $2.2 million.
	In February 2013, the FASB issued guidance for the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP. The new guidance will be effective for us beginning January 1, 2014. Early adoption is permitted. We do not expect the adoption of this guidance to have a material impact on our condensed consolidated financial statements.

Inventories

Inventories	9 Months Ended
	Sep. 28, 2013
Inventories	Note 2. Inventories
	Inventories consisted of the following:
		(In thousands)
		September 28,		December 31,
		2013		2012
	Raw materials and supplies	$	80,672	$	84,545
	Work in process		68,688		67,132
	Finished goods		10,816		13,031
			160,176		164,708
	Less progress payments		11,652		16,390
	Total	$	148,524	$	148,318

Goodwill

Goodwill	9 Months Ended
	Sep. 28, 2013
Goodwill	Note 3. Goodwill
	Goodwill was as follows:
		(In thousands)
				Ducommun
		Ducommun		LaBarge			Consolidated
		AeroStructures		Technologies			Ducommun
	Gross goodwill	$	57,243	$	184,970		$	242,213
	Accumulated goodwill impairment		—		(80,273	)		(80,273	)
	Balance at December 31, 2012	$	57,243	$	104,697		$	161,940
	Balance at September 28, 2013	$	57,243	$	104,697		$	161,940

LongTerm_Debt

Long-Term Debt	9 Months Ended
	Sep. 28, 2013
Long-Term Debt	Note 4. Long-Term Debt
	Long-term debt and the current period interest rates were as follows:
		(In thousands)
		September 28,			December 31,
		2013			2012
	Senior unsecured notes (fixed 9.75%)	$	200,000		$	200,000
	Senior secured term loan (floating 4.75%)		140,125			162,625
	Promissory note (fixed 5.0%) and other debt (fixed 5.41%)		3,088			3,119
	Total Debt		343,213			365,744
	Less Current Portion		3,029			3,042
	Total Long-Term Debt	$	340,184		$	362,702
	Weighted-average interest rate		7.67	%		7.82	%
	We made voluntary principal prepayments of $7.5 million each on our senior secured term loan on September 27, 2013, April 30, 2013 and March 28, 2013.
	On March 28, 2013, we executed an amendment to our Credit Agreement dated June 11, 2011 (“Credit Agreement”) which completed a repricing of our senior secured term loan and revolving credit facility. The repricing reduced the interest rate spread on the senior secured term loan and revolving credit facility by 50 basis points and the interest rate floor by 25 basis points. In connection with this repricing, we recognized $0.5 million of financing and legal costs which were included in selling, general and administrative expenses in the first quarter of 2013.
	At September 28, 2013, we had $58.4 million of unused borrowing capacity under the revolving credit facility, after deducting $1.6 million for standby letters of credit.
	At September 28, 2013, we were in compliance with all covenants required by the Credit Agreement. At September 28, 2013, there were no amounts outstanding that would have triggered the leverage covenant under the Credit Agreement. However, we would have been in compliance with such leverage covenant. Under the terms of the Credit Agreement, if, during a given fiscal quarter, (i) the sum of (a) any amounts outstanding under the revolving credit facility plus (b) the amount drawn under any letters of credit exceeds $1.0 million; or (ii) the aggregate amount of outstanding letters of credit exceeds $5.0 million, the revolving credit facility will be subject to a maximum total leverage ratio.
	On October 18, 2013, we executed an amendment to our Credit Agreement, which increases the maximum leverage ratio, as defined, by 0.75 in all future periods.
	The carrying amount of long-term debt approximates fair value, except for the senior unsecured notes for which the fair value was $223.5 million. Fair value was estimated using Level 2 inputs, based on the terms of the related debt, recent transactions and estimates using interest rates currently available to us for debt with similar terms and remaining maturities.

Shareholders_Equity

Shareholders' Equity	9 Months Ended
	Sep. 28, 2013
Shareholders' Equity	Note 5. Shareholders’ Equity
	We are authorized to issue five million shares of preferred stock. At September 28, 2013 and December 31, 2012, no preferred shares were issued or outstanding.

Employee_Benefit_Plans

Employee Benefit Plans	9 Months Ended
	Sep. 28, 2013
Employee Benefit Plans	Note 6. Employee Benefit Plans
	The components of net periodic pension expense were as follows:
			(In thousands)
			Three Months Ended						Nine Months Ended
			September 28,			September 29,			September 28,			September 29,
			2013			2012			2013			2012
	Service cost		$	211		$	241		$	633		$	723
	Interest cost			290			238			870			714
	Expected return on plan assets			(306	)		(265	)		(918	)		(795	)
	Amortization of actuarial loss and prior service costs			274			287			822			861
	Net periodic pension cost		$	469		$	501		$	1,407		$	1,503
	The components of the reclassifications from accumulated other comprehensive loss to net income during the three and nine months ended September 28, 2013 were as follows:
			(In thousands)
			Three Months Ended			Nine Months Ended
			September 28,			September 28,
			2013 (a)			2013 (a)
	Amortization of actuarial loss and prior service costs-total before tax (b)		$	(274	)	$	(822	)
	Tax benefit			102			306
	Net of tax		$	(172	)	$	(516	)
	(a)	Amounts in parenthesis indicate reductions to net income upon reclassification from accumulated other comprehensive loss.
	(b)	The amount is included in the computation of net periodic pension cost.

Indemnification

Indemnification	9 Months Ended
	Sep. 28, 2013
Indemnification	Note 7. Indemnification
	We have made guarantees and indemnities under which we may be required to make payments to a guaranteed or indemnified party, in relation to certain transactions, including revenue transactions in the ordinary course of business. In connection with certain facility leases, we have indemnified our lessors for certain claims arising from the facility or the lease. We indemnify our directors and officers to the maximum extent permitted under the laws of the State of Delaware. However, we have a directors and officers insurance policy that may reduce our exposure in certain circumstances and may enable us to recover a portion of future amounts that may be payable, if any. The duration of the guarantees and indemnities varies and, in many cases, is indefinite but subject to statute of limitations. The majority of guarantees and indemnities do not provide any limitations of the maximum potential future payments we could be obligated to make. Historically, payments related to these guarantees and indemnities have been immaterial. We estimate the fair value of our indemnification obligations as insignificant based on this history and insurance coverage and have, therefore, not recorded any liability for these guarantees and indemnities in the accompanying condensed consolidated balance sheets.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 28, 2013
Income Taxes	Note 8. Income Taxes
	We recorded an income tax benefit of $0.1 million (an effective tax benefit of 1.9%) in the third quarter of 2013, compared to an income tax expense of $0.9 million (an effective tax rate of 14.9%) in the third quarter of 2012. We recorded an income tax expense of $0.8 million (an effective tax rate of 5.4%) in the first nine months of 2013, compared to an income tax expense of $2.4 million (an effective tax rate of 15.6%) in the comparable period of 2012.
	The effective tax rate in the nine months ended September 28, 2013 included $2.0 million of 2012 federal research and development tax credit benefits recognized in the first quarter of 2013 as a result of the American Taxpayer Relief Act of 2012, passed in January 2013. This Act includes an extension of the federal research and development tax credit for the amounts paid or incurred after December 31, 2011 and before January 1, 2014. We recognized total federal research and development tax credit benefits of $2.5 million in the first quarter of 2013, $0.5 million in the second quarter of 2013, and $0.7 million in the third quarter of 2013. We expect to recognize approximately $0.5 million for these benefits in the fourth quarter of 2013. The effective tax rate for the three and nine months ended September 29, 2012 included no federal research and development tax credit benefits. The effective tax rate for the third quarters of both 2013 and 2012 benefitted from expiring statutes and other favorable tax adjustments. In addition, the first nine months of 2012 included a tax benefit of $1.6 million as a result of the 2011 acquisition of LaBarge Inc., which allowed us to file state consolidated tax returns in certain states.
	Our unrecognized tax benefits were $2.5 million and $1.7 million at September 28, 2013 and December 31, 2012, respectively. Most of these amounts, if recognized, would affect our annual income tax rate.

Contingencies

Contingencies	9 Months Ended
	Sep. 28, 2013
Contingencies	Note 9. Contingencies
	Ducommun is a defendant in a lawsuit entitled United States of America ex rel Taylor Smith, Jeannine Prewitt and James Ailes v. The Boeing Company and Ducommun Inc., filed in the United States District Court for the District of Kansas (the “District Court”). The lawsuit is a qui tam action brought by three former Boeing employees (“Relators”) against Boeing and Ducommun on behalf of the United States of America for violations of the United States False Claims Act. The lawsuit alleges that Ducommun sold unapproved parts to the Boeing Company (“Boeing”), which were installed by Boeing in aircraft ultimately sold to the United States Government and that Boeing and Ducommun submitted or caused to be submitted false claims for payment relating to 21 aircraft sold by Boeing to the United States Government. The lawsuit seeks damages in an amount equal to three times the amount of damages the United States Government sustained because of the defendants’ actions, plus a civil penalty of $10 thousand for each false claim made on or before September 28, 1999, and $11 thousand for each false claim made on or after September 28, 1999, together with attorneys’ fees and costs. The Relators claim that the United States Government sustained damages of $1.6 billion (the contract purchase price of 21 aircraft) or, alternatively, $851 million (the alleged diminished value and increased maintenance cost of the 21 aircraft). After investigating the allegations, the United States Government has declined to intervene in the lawsuit. Ducommun and Boeing have filed motions for summary judgment to dismiss the lawsuit. The motions for summary judgment are pending before the District Court. Ducommun intends to defend itself vigorously against the lawsuit. Ducommun, at this time, is unable to estimate what, if any, liability it may have in connection with the lawsuit.
	DAS has been directed by California environmental agencies to investigate and take corrective action for groundwater contamination at its facilities located in El Mirage and Monrovia, California. Based on currently available information, Ducommun has established a reserve for its estimated liability for such investigation and corrective action of approximately $1.5 million at September 28, 2013, which is reflected in other long-term liabilities on its condensed consolidated balance sheet.
	DAS also faces liability as a potentially responsible party for hazardous waste disposed at landfills located in Casmalia and West Covina, California. DAS and other companies and government entities have entered into consent decrees with respect to these landfills with the United States Environmental Protection Agency and/or California environmental agencies under which certain investigation, remediation and maintenance activities are being performed. Based on currently available information, Ducommun preliminarily estimates that the range of its future liabilities in connection with the landfill located in West Covina, is between approximately $0.4 million and $3.1 million. Ducommun has established a reserve for its estimated liability, in connection with the West Covina landfill of approximately $0.4 million at September 28, 2013, which is reflected in other long-term liabilities on its condensed consolidated balance sheet. Ducommun’s ultimate liability in connection with these matters will depend upon a number of factors, including changes in existing laws and regulations, the design and cost of construction, operation and maintenance activities, and the allocation of liability among potentially responsible parties.
	In the normal course of business, Ducommun and its subsidiaries are defendants in certain other litigation, claims and inquiries, including matters relating to environmental laws. In addition, Ducommun makes various commitments and incurs contingent liabilities. While it is not feasible to predict the outcome of these matters, Ducommun does not presently expect that any sum it may be required to pay in connection with these matters would have a material adverse effect on its consolidated financial position, results of operations or cash flows.

Business_Segment_Information

Business Segment Information	9 Months Ended
	Sep. 28, 2013
Business Segment Information	Note 10. Business Segment Information
	We supply products and services primarily to the aerospace and defense industries. Our subsidiaries are organized into two strategic businesses, DAS and DLT, each of which is a reportable operating segment.
	Financial information by reportable segment was as follows:
			(In thousands)									(In thousands)
			Three Months Ended									Nine Months Ended
			%			September 28,			September 29,			%			September 28,			September 29,
			Change			2013			2012			Change			2013			2012
	Net Sales
	DAS			1.4	%	$	77,740		$	76,655			2.9	%	$	234,437		$	227,832
	DLT			(3.6	)%		103,548			107,442			(3.4	)%		314,238			325,313
	Total Net Sales			(1.5	)%	$	181,288		$	184,097			(0.8	)%	$	548,675		$	553,145
	Segment Operating Income
	DAS					$	7,633		$	7,410					$	23,766		$	21,575
	DLT (2)						7,596			10,472						26,772			29,260
							15,229			17,882						50,538			50,835
	Corporate General and
	Administrative Expenses (1) (2) (3)						(3,276	)		(3,642	)					(13,240	)		(10,724	)
	Total Operating Income					$	11,953		$	14,240					$	37,298		$	40,111
	Depreciation and Amortization
	Expenses
	DAS					$	2,621		$	2,903					$	7,386		$	7,200
	DLT						4,540			4,710						13,863			14,139
	Corporate Administration						41			42						126			122
	Total Depreciation and
	Amortization Expenses					$	7,202		$	7,655					$	21,375		$	21,461
	Capital Expenditures
	DAS					$	1,159		$	2,074					$	4,208		$	6,360
	DLT						866			1,472						3,046			5,921
	Corporate Administration						43			21						67			49
	Total Capital Expenditures					$	2,068		$	3,567					$	7,321		$	12,330
	(1)	Includes costs not allocated to either the DLT or DAS operating segments.
	(2)	The nine-month period of 2012 includes merger-related transaction costs of $0.3 million in Corporate General and Administrative Expenses and $0.4 million in DLT resulting from a change in control provision for certain key executives and employees arising in connection with the acquisition of LaBarge Inc. in June 2011.
	(3)	The three- and nine-month periods of 2013 include $0.1 million and $1.2 million, respectively, of workers’ compensation insurance expenses included in gross profit and not allocated to the operating segments. The three- and nine-month periods of 2012 include $(0.2) million and $0.4 million, respectively, of workers’ compensation insurance expenses (credits) included in gross profit and not allocated to the operating segments.
	Segment assets include assets directly identifiable with each segment. Corporate Administration assets include assets not specifically identified with a business segment, including cash.
			(In thousands)
			September 28,			December 31,
			2013			2012
	Total Assets
	DAS		$	252,476		$	248,326
	DLT			447,827			465,217
	Corporate Administration			59,743			71,531
	Total Assets		$	760,046		$	785,074
	Goodwill and Intangibles
	DAS		$	65,775		$	67,459
	DLT			264,353			270,837
	Total Goodwill and Intangibles		$	330,128		$	338,296

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 28, 2013
Basis of Presentation	Basis of Presentation
	The consolidated financial statements include the accounts of Ducommun Incorporated and its subsidiaries (“Ducommun”, the “Company”, “we”, “us” or “our”), after eliminating intercompany balances and transactions. The December 31, 2012 condensed consolidated balance sheet data was derived from audited financial statements, but does not contain all disclosures required by accounting principles generally accepted in the United States of America (“GAAP”).
	Our significant accounting policies were described in Part II, Item 8. “Note 1. Summary of Significant Accounting Policies” in our Annual Report on Form 10-K for the year ended December 31, 2012. We follow the same accounting policies for interim reporting, with the exception of accounting principles adopted as of January 1, 2013, as discussed below in Recent Accounting Pronouncements. The financial information included in this Quarterly Report on Form 10-Q should be read in conjunction with our consolidated financial statements and related notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2012.
	In the opinion of management, all adjustments, consisting of recurring accruals, have been made that are necessary to fairly state our condensed consolidated financial position, statements of income, comprehensive income and cash flows in accordance with GAAP for the periods covered by this Quarterly Report on Form 10-Q. The results of operations for the three and nine months ended September 28, 2013 are not necessarily indicative of the results to be expected for the full year ending December 31, 2013.
	Certain prior year reclassifications have been made to conform to the current year financial statement presentation.
Use of Estimates	Use of Estimates
	Certain amounts and disclosures included in the condensed consolidated financial statements required management to make estimates and judgments that affect the amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities. These estimates are based on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates.
Description of Business	Description of Business
	We are a global provider of engineering and manufacturing products and services primarily to the aerospace and defense industry through a wide range of products and services in the primary businesses of electronics, structures and integrated solutions. Our subsidiaries are organized into two strategic businesses, each of which is a reportable operating segment. Ducommun AeroStructures (“DAS”) designs, engineers and manufactures large, complex contoured aerospace structural components and assemblies and supplies composite and metal bonded structures and assemblies. Ducommun LaBarge Technologies (“DLT”) designs, engineers and manufactures high-reliability products used in worldwide technology-driven markets including aerospace and defense, natural resources, industrial and medical and other end-use markets. DLT’s product offerings range from prototype development to complex assemblies. Each reportable operating segment follows the same accounting principles.
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss
	Accumulated other comprehensive loss, as reflected on the condensed consolidated balance sheets, was composed of cumulative pension and liability adjustments of $7.0 million and $7.5 million, net of tax, at September 28, 2013 and December 31, 2012, respectively.
Earnings Per Share	Earnings per Share
	Basic earnings per share are computed by dividing income available to common shareholders by the weighted-average number of common shares outstanding in each period. Diluted earnings per share are computed by dividing the sum of income available to common shareholders plus income associated with dilutive securities by the weighted-average number of common shares outstanding, plus any potential dilutive shares that could be issued if exercised or converted into common stock in each period.
	The net earnings and weighted-average number of common shares outstanding used to compute earnings per share were as follows:
		(In thousands, except per share amounts)
		Three Months Ended				Nine Months Ended
		September 28,		September 29,		September 28,		September 29,
		2013		2012		2013		2012
	Net earnings (a)	$	4,636	$	5,105	$	13,847	$	13,002
	Weighted-average number of common shares outstanding
	Basic weighted-average common shares outstanding (b)		10,722		10,595		10,657		10,575
	Dilutive potential common shares		195		38		128		13
	Diluted weighted-average common shares outstanding (c)		10,917		10,633		10,785		10,588
	Earnings per share
	Basic (a/b)	$	0.43	$	0.48	$	1.3	$	1.23
	Diluted (a/c)	$	0.42	$	0.48	$	1.28	$	1.23
	Potentially dilutive stock options and stock units to purchase common stock, as shown below, were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive. However, these shares may be potentially dilutive common shares in the future.
		(In thousands)
		Three Months Ended				Nine Months Ended
		September 28,		September 29,		September 28,		September 29,
		2013		2012		2013		2012
	Stock options and stock units		219		1,012		612		1,015
Cash Equivalents	Cash Equivalents
	Cash equivalents consist of highly liquid instruments purchased with original maturities of three months or less. These assets are valued at cost, which approximates fair value, which we classify as Level 1. See Fair Value below.
Out of Period Adjustments	Out of Period Adjustments
	During the third quarter of 2013, we determined that approximately $1.1 million of inventory had not been valued correctly at our DLT operating segment for periods originating in 2010 through the second quarter of 2013. The errors were attributed to the following quarters; $0.3 million in Q2 2010, $0.5 million in Q2 2011, $0.1 million in Q4 2012, $0.1 million in Q1 2013 and $0.1 million in Q2 2013. We assessed the materiality of these errors and concluded they were immaterial to currently forecasted annual amounts and previously reported annual and interim amounts. We corrected the errors in the third quarter of 2013 and recorded a $1.1 million charge for inventory reserves for the DLT operating segment.
	During the first quarter of 2012, we determined that approximately $0.4 million of engineering research and development costs had been capitalized in error in inventory in prior periods. We assessed the materiality of this error and concluded it was immaterial to currently reported annual and previously reported annual and interim amounts. We corrected the error in the first quarter of 2012 and did not restate our condensed consolidated financial statements for the prior annual or interim periods.
Fair Value	Fair Value
	Assets and liabilities that are measured, recorded or disclosed at fair value on a recurring basis are categorized using the fair value hierarchy. The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value. Level 1, the highest level, refers to the values determined based on quoted prices in active markets for identical assets. Level 2 refers to fair values estimated using significant observable inputs. Level 3, the lowest level, includes fair values estimated using significant unobservable inputs.
Recent Accounting Pronouncements	Recent Accounting Pronouncements
	New Accounting Guidance Adopted in 2013
	In February 2013, the Financial Accounting Standards Board (the “FASB”) issued guidance to improve the reporting of reclassifications out of accumulated other comprehensive income/loss. The new guidance requires an entity to report the effect of significant reclassifications out of accumulated other comprehensive income/loss on the respective line items in net income if the amount being reclassified is required under GAAP to be reclassified in its entirety to net income. For other amounts that are not required under GAAP to be reclassified in their entirety to net income in the same reporting period, cross-reference to other disclosures that provide additional detail is required. Early adoption is permitted. We adopted this new guidance effective January 1, 2013. This guidance affects disclosures only.
	In January 2013, the FASB issued guidance clarifying the scope of disclosures about offsetting assets and liabilities and requires retrospective application for all periods presented. We adopted this new guidance effective January 1, 2013. The adoption of this new guidance did not have any effect on our condensed consolidated financial statements. In December 2011, the FASB issued guidance enhancing disclosure requirements about the nature of an entity’s right to offset and related arrangements associated with its financial instruments and derivative instruments. The new guidance requires the disclosure of the gross amounts subject to rights of set-off, amounts offset in accordance with the accounting standards followed, and the related net exposure. The new guidance requires retrospective application for all comparable periods presented. We adopted this new guidance effective January 1, 2013. The adoption of this new guidance did not have any effect on our condensed consolidated financial statements.
	New Accounting Guidance Not Yet Adopted
	In July 2013, the FASB issued guidance that requires the netting of unrecognized tax benefits against a deferred tax asset for a loss or other carryforward that would apply in settlement of the uncertain tax positions. This guidance will be effective for fiscal years beginning after December 15, 2013, which will be our fiscal year 2014, with early adoption permitted. We currently expect the adoption of this guidance will reduce deferred tax assets by approximately $2.2 million.
	In February 2013, the FASB issued guidance for the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP. The new guidance will be effective for us beginning January 1, 2014. Early adoption is permitted. We do not expect the adoption of this guidance to have a material impact on our condensed consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 28, 2013
Weighted Average Number of Shares Outstanding Used to Compute Earnings Per Share	The net earnings and weighted-average number of common shares outstanding used to compute earnings per share were as follows:
		(In thousands, except per share amounts)
		Three Months Ended				Nine Months Ended
		September 28,		September 29,		September 28,		September 29,
		2013		2012		2013		2012
	Net earnings (a)	$	4,636	$	5,105	$	13,847	$	13,002
	Weighted-average number of common shares outstanding
	Basic weighted-average common shares outstanding (b)		10,722		10,595		10,657		10,575
	Dilutive potential common shares		195		38		128		13
	Diluted weighted-average common shares outstanding (c)		10,917		10,633		10,785		10,588
	Earnings per share
	Basic (a/b)	$	0.43	$	0.48	$	1.3	$	1.23
	Diluted (a/c)	$	0.42	$	0.48	$	1.28	$	1.23
Weighted Average Number of Shares Outstanding Excluded from Computation of Diluted Earnings	Potentially dilutive stock options and stock units to purchase common stock, as shown below, were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive. However, these shares may be potentially dilutive common shares in the future.
		(In thousands)
		Three Months Ended				Nine Months Ended
		September 28,		September 29,		September 28,		September 29,
		2013		2012		2013		2012
	Stock options and stock units		219		1,012		612		1,015

Inventories_Tables

Inventories (Tables)	9 Months Ended
	Sep. 28, 2013
Summary of Inventories	Inventories consisted of the following:
		(In thousands)
		September 28,		December 31,
		2013		2012
	Raw materials and supplies	$	80,672	$	84,545
	Work in process		68,688		67,132
	Finished goods		10,816		13,031
			160,176		164,708
	Less progress payments		11,652		16,390
	Total	$	148,524	$	148,318

Goodwill_Tables

Goodwill (Tables)	9 Months Ended
	Sep. 28, 2013
Schedule of Goodwill	Goodwill was as follows:
		(In thousands)
				Ducommun
		Ducommun		LaBarge			Consolidated
		AeroStructures		Technologies			Ducommun
	Gross goodwill	$	57,243	$	184,970		$	242,213
	Accumulated goodwill impairment		—		(80,273	)		(80,273	)
	Balance at December 31, 2012	$	57,243	$	104,697		$	161,940
	Balance at September 28, 2013	$	57,243	$	104,697		$	161,940

LongTerm_Debt_Tables

Long-Term Debt (Tables)	9 Months Ended
	Sep. 28, 2013
Long-Term Debt and Current Period Interest Rates	Long-term debt and the current period interest rates were as follows:
		(In thousands)
		September 28,			December 31,
		2013			2012
	Senior unsecured notes (fixed 9.75%)	$	200,000		$	200,000
	Senior secured term loan (floating 4.75%)		140,125			162,625
	Promissory note (fixed 5.0%) and other debt (fixed 5.41%)		3,088			3,119
	Total Debt		343,213			365,744
	Less Current Portion		3,029			3,042
	Total Long-Term Debt	$	340,184		$	362,702
	Weighted-average interest rate		7.67	%		7.82	%

Employee_Benefit_Plans_Tables

Employee Benefit Plans (Tables)	9 Months Ended
	Sep. 28, 2013
Components of Net Periodic Pension Expense	The components of net periodic pension expense were as follows:
			(In thousands)
			Three Months Ended						Nine Months Ended
			September 28,			September 29,			September 28,			September 29,
			2013			2012			2013			2012
	Service cost		$	211		$	241		$	633		$	723
	Interest cost			290			238			870			714
	Expected return on plan assets			(306	)		(265	)		(918	)		(795	)
	Amortization of actuarial loss and prior service costs			274			287			822			861
	Net periodic pension cost		$	469		$	501		$	1,407		$	1,503
Components of Reclassifications from Accumulated Other Comprehensive Income	The components of the reclassifications from accumulated other comprehensive loss to net income during the three and nine months ended September 28, 2013 were as follows:
			(In thousands)
			Three Months Ended			Nine Months Ended
			September 28,			September 28,
			2013 (a)			2013 (a)
	Amortization of actuarial loss and prior service costs-total before tax (b)		$	(274	)	$	(822	)
	Tax benefit			102			306
	Net of tax		$	(172	)	$	(516	)
	(a)	Amounts in parenthesis indicate reductions to net income upon reclassification from accumulated other comprehensive loss.
	(b)	The amount is included in the computation of net periodic pension cost.

Business_Segment_Information_T

Business Segment Information (Tables)	9 Months Ended
	Sep. 28, 2013
Financial Information by Reportable Segment	Financial information by reportable segment was as follows:
			(In thousands)									(In thousands)
			Three Months Ended									Nine Months Ended
			%			September 28,			September 29,			%			September 28,			September 29,
			Change			2013			2012			Change			2013			2012
	Net Sales
	DAS			1.4	%	$	77,740		$	76,655			2.9	%	$	234,437		$	227,832
	DLT			(3.6	)%		103,548			107,442			(3.4	)%		314,238			325,313
	Total Net Sales			(1.5	)%	$	181,288		$	184,097			(0.8	)%	$	548,675		$	553,145
	Segment Operating Income
	DAS					$	7,633		$	7,410					$	23,766		$	21,575
	DLT (2)						7,596			10,472						26,772			29,260
							15,229			17,882						50,538			50,835
	Corporate General and
	Administrative Expenses (1) (2) (3)						(3,276	)		(3,642	)					(13,240	)		(10,724	)
	Total Operating Income					$	11,953		$	14,240					$	37,298		$	40,111
	Depreciation and Amortization
	Expenses
	DAS					$	2,621		$	2,903					$	7,386		$	7,200
	DLT						4,540			4,710						13,863			14,139
	Corporate Administration						41			42						126			122
	Total Depreciation and
	Amortization Expenses					$	7,202		$	7,655					$	21,375		$	21,461
	Capital Expenditures
	DAS					$	1,159		$	2,074					$	4,208		$	6,360
	DLT						866			1,472						3,046			5,921
	Corporate Administration						43			21						67			49
	Total Capital Expenditures					$	2,068		$	3,567					$	7,321		$	12,330
	(1)	Includes costs not allocated to either the DLT or DAS operating segments.
	(2)	The nine-month period of 2012 includes merger-related transaction costs of $0.3 million in Corporate General and Administrative Expenses and $0.4 million in DLT resulting from a change in control provision for certain key executives and employees arising in connection with the acquisition of LaBarge Inc. in June 2011.
	(3)	The three- and nine-month periods of 2013 include $0.1 million and $1.2 million, respectively, of workers’ compensation insurance expenses included in gross profit and not allocated to the operating segments. The three- and nine-month periods of 2012 include $(0.2) million and $0.4 million, respectively, of workers’ compensation insurance expenses (credits) included in gross profit and not allocated to the operating segments.
	Segment assets include assets directly identifiable with each segment. Corporate Administration assets include assets not specifically identified with a business segment, including cash.
			(In thousands)
			September 28,			December 31,
			2013			2012
	Total Assets
	DAS		$	252,476		$	248,326
	DLT			447,827			465,217
	Corporate Administration			59,743			71,531
	Total Assets		$	760,046		$	785,074
	Goodwill and Intangibles
	DAS		$	65,775		$	67,459
	DLT			264,353			270,837
	Total Goodwill and Intangibles		$	330,128		$	338,296

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	1 Months Ended	9 Months Ended			3 Months Ended					9 Months Ended
In Millions, unless otherwise specified	Jul. 31, 2013	Sep. 28, 2013	Dec. 31, 2012	Mar. 31, 2012	Jun. 29, 2013	Mar. 30, 2013	Dec. 31, 2012	Jul. 02, 2011	Jul. 03, 2010	Sep. 28, 2013
		Segment			Ducommun LaBarge Technologies	Ducommun LaBarge Technologies	Ducommun LaBarge Technologies	Ducommun LaBarge Technologies	Ducommun LaBarge Technologies	Ducommun LaBarge Technologies
Significant Accounting Policies [Line Items]
Number of reportable segments		2
Accumulated pension liability adjustment, net of tax		$7	$7.50
Cash equivalent maturity period		Three months or less
Inventory that had not been previously valued correctly and corrected in the third quarter					0.1	0.1	0.1	0.5	0.3	1.1
Inventory valuation reserves										1.1
Inventory capitalized cost				0.4
Reduction in deferred tax assets	$2.20

Weighted_Average_Number_of_Sha

Weighted Average Number of Shares Outstanding Used to Compute Earnings Per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Weighted Average Number of Shares Outstanding [Line Items]
Net earnings	$4,636	$5,105	$13,847	$13,002
Weighted-Average Number of Common Shares Outstanding
Basic weighted-average common shares outstanding	10,722	10,595	10,657	10,575
Dilutive potential common shares	195	38	128	13
Diluted weighted-average common shares outstanding	10,917	10,633	10,785	10,588
Basic	$0.43	$0.48	$1.30	$1.23
Diluted	$0.42	$0.48	$1.28	$1.23

Weighted_Average_Number_of_Sha1

Weighted Average Number of Shares Outstanding Excluded from Computation of Diluted Earnings (Detail) (Stock Options And Restricted Stock Units)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Stock Options And Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options and stock units	219	1,012	612	1,015

Summary_of_Inventories_Detail

Summary of Inventories (Detail) (USD $)	Sep. 28, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Inventory [Line Items]
Raw materials and supplies	$80,672	$84,545
Work in process	68,688	67,132
Finished goods	10,816	13,031
Net Inventories Before Progress Payments, Total	160,176	164,708
Less progress payments	11,652	16,390
Total	$148,524	$148,318

Schedule_of_Goodwill_Detail

Schedule of Goodwill (Detail) (USD $)	Sep. 28, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Goodwill [Line Items]
Gross goodwill		$242,213
Accumulated goodwill impairment		-80,273
Goodwill Ending Balance	161,940	161,940
Ducommun AeroStructures
Goodwill [Line Items]
Gross goodwill		57,243
Goodwill Ending Balance	57,243	57,243
Ducommun LaBarge Technologies
Goodwill [Line Items]
Gross goodwill		184,970
Accumulated goodwill impairment		-80,273
Goodwill Ending Balance	$104,697	$104,697

Long_Term_Debt_and_Current_Per

Long Term Debt and Current Period Interest Rates (Detail) (USD $)	Sep. 28, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Long Term Debt [Line Items]
Total Debt	$343,213	$365,744
Less Current Portion	3,029	3,042
Total Long-Term Debt	340,184	362,702
Weighted-average interest rate	7.67%	7.82%
Senior Unsecured Notes
Long Term Debt [Line Items]
Long-Term Debt	200,000	200,000
Senior Secured Term Loan
Long Term Debt [Line Items]
Long-Term Debt	140,125	162,625
Promissory note and Other Debt
Long Term Debt [Line Items]
Long-Term Debt	$3,088	$3,119

Long_Term_Debt_and_Current_Per1

Long Term Debt and Current Period Interest Rates (Parenthetical) (Detail)	Sep. 28, 2013
Senior Unsecured Notes
Long Term Debt [Line Items]
Fixed rate, note	9.75%
Senior Secured Term Loan
Long Term Debt [Line Items]
Floating rate, Note	4.75%
Promissory Note
Long Term Debt [Line Items]
Fixed rate, note	5.00%
Other Debt
Long Term Debt [Line Items]
Fixed rate, note	5.41%

LongTerm_Debt_Additional_infor

Long-Term Debt - Additional information (Detail) (USD $)	3 Months Ended		9 Months Ended			1 Months Ended		1 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Oct. 18, 2013	Sep. 28, 2013	Mar. 28, 2013	Mar. 28, 2013	Sep. 27, 2013	Apr. 30, 2013	Mar. 28, 2013
					Subsequent Event	Debt Covenant	Senior Secured Term Loan and Revolving Credit Facility	Financing and legal costs	Voluntary Principal Pre-Payments	Voluntary Principal Pre-Payments	Voluntary Principal Pre-Payments
Debt Instrument [Line Items]
Voluntary principal payments made during the annual reporting period									$7,500,000	$7,500,000	$7,500,000
Debt Instrument, Reduction in interest rate							0.50%
Debt Instrument, Reduction in interest rate floor							0.25%
Selling, General and Administrative Expenses	20,351,000	21,340,000	65,175,000	65,891,000				500,000
Unused revolving lines of credit	58,400,000		58,400,000
Outstanding standby letters of credit	1,600,000		1,600,000
Credit facilities description						Under the terms of the Credit Agreement, if, during a given fiscal quarter, (i) the sum of (a) any amounts outstanding under the revolving credit facility plus (b) the amount drawn under any letters of credit exceeds $1.0 million; or (ii) the aggregate amount of outstanding letters of credit exceeds $5.0 million, the revolving credit facility will be subject to a maximum total leverage ratio.
Limit for amount drawn under any letters of credit where Revolving Credit Facility will be subject to a maximum total leverage ratio						1,000,000
Limit for outstanding letters of credit where Revolving Credit Facility will be subject to a maximum total leverage ratio						5,000,000
Increases in leverage ratio					0.75
Fair value debt	$223,500,000		$223,500,000

Shareholders_Equity_Additional

Shareholders' Equity - Additional Information (Detail)	Sep. 28, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Class of Stock [Line Items]
Preferred stock, shares authorized	5	5
Preferred stock, shares issued
Preferred stock, shares outstanding

Components_of_Net_Periodic_Pen

Components of Net Periodic Pension Expense (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Defined Benefit Plan Disclosure [Line Items]
Service cost	$211	$241	$633	$723
Interest cost	290	238	870	714
Expected return on plan assets	-306	-265	-918	-795
Amortization of actuarial loss and prior service costs	274	287	822	861
Net periodic pension cost	$469	$501	$1,407	$1,503

Components_of_Reclassification

Components of Reclassifications from Accumulated Other Comprehensive Income (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013		Sep. 28, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amortization of actuarial loss and prior service costs-total before tax	($274)	[1],[2]	($822)	[1],[2]
Tax benefit	102	[1]	306	[1]
Net of tax	($172)	[1]	($516)	[1]
[1]	Amounts in parenthesis indicate reductions to net income upon reclassification from accumulated other comprehensive loss.
[2]	The amount is included in the computation of net periodic pension cost.

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended				9 Months Ended			3 Months Ended	9 Months Ended
	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Dec. 31, 2012	Dec. 31, 2013	Sep. 29, 2012	Sep. 28, 2013
								Scenario, Forecast	Ducommun LaBarge Technologies	Federal Research and Development
Income Taxes [Line Items]
Effective income tax rate	1.90%			14.90%	5.40%	15.60%
Income tax expense (benefit)	($86,000)			$894,000	$783,000	$2,395,000
Research and development tax credit benefits	700,000	500,000	2,500,000	0		0		500,000		2,000,000
Tax benefit from filling state consolidated tax returns									1,600,000
Unrecognized tax benefits	$2,500,000				$2,500,000		$1,700,000

Contingencies_Additional_Infor

Contingencies - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 28, 2013
	Aircraft
Loss Contingencies [Line Items]
Number of Boeing aircraft subject to lawsuit	21
Scenario 1
Loss Contingencies [Line Items]
Estimate of Possible Loss	1,600,000,000
Scenario 2
Loss Contingencies [Line Items]
Estimate of Possible Loss	851,000,000
Ducommun AeroStructures | El Mirage and Monrovia, California
Loss Contingencies [Line Items]
Reserve for estimated liability	1,500,000
Ducommun AeroStructures | Casmalia and West Covina, California
Loss Contingencies [Line Items]
Reserve for estimated liability	400,000
Possible Loss, minimum	400,000
Possible Loss, maximum	3,100,000
For each false claim made on or before September 28, 1999
Loss Contingencies [Line Items]
Civil penalty	10,000
For each false claim made on or after September 28, 1999
Loss Contingencies [Line Items]
Civil penalty	11,000

Business_Segment_Information_A

Business Segment Information - Additional Information (Detail)	9 Months Ended
	Sep. 28, 2013
	Segment
Segment Reporting Information [Line Items]
Number of reportable segments	2

Financial_Information_by_Repor

Financial Information by Reportable Segment (Detail) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013		Sep. 29, 2012		Sep. 28, 2013		Sep. 29, 2012
Segment Reporting Information [Line Items]
Net Sales, Percentage Change	-1.50%				-0.80%
Net Sales	$181,288		$184,097		$548,675		$553,145
Segment Operating Income (Loss)	15,229		17,882		50,538		50,835
Corporate General and Administrative Expenses	-3,276	[1],[2],[3]	-3,642	[1],[2],[3]	-13,240	[1],[2],[3]	-10,724	[1],[2],[3]
Operating Income	11,953		14,240		37,298		40,111
Depreciation and Amortization Expenses	7,202		7,655		21,375		21,461
Capital Expenditures	2,068		3,567		7,321		12,330
Ducommun AeroStructures
Segment Reporting Information [Line Items]
Net Sales, Percentage Change	1.40%				2.90%
Net Sales	77,740		76,655		234,437		227,832
Segment Operating Income (Loss)	7,633		7,410		23,766		21,575
Depreciation and Amortization Expenses	2,621		2,903		7,386		7,200
Capital Expenditures	1,159		2,074		4,208		6,360
Ducommun LaBarge Technologies
Segment Reporting Information [Line Items]
Net Sales, Percentage Change	-3.60%				-3.40%
Net Sales	103,548		107,442		314,238		325,313
Segment Operating Income (Loss)	7,596	[1]	10,472	[1]	26,772	[1]	29,260	[1]
Depreciation and Amortization Expenses	4,540		4,710		13,863		14,139
Capital Expenditures	866		1,472		3,046		5,921
Corporate Administration
Segment Reporting Information [Line Items]
Depreciation and Amortization Expenses	41		42		126		122
Capital Expenditures	$43		$21		$67		$49
[1]	The nine-month period of 2012 includes merger-related transaction costs of $0.3 million in Corporate General and Administrative Expenses and $0.4 million in DLT resulting from a change in control provision for certain key executives and employees arising in connection with the acquisition of LaBarge Inc. in June 2011.
[2]	Includes costs not allocated to either the DLT or DAS operating segments.
[3]	The three- and nine-month periods of 2013 include $0.1 million and $1.2 million, respectively, of workers' compensation insurance expenses included in gross profit and not allocated to the operating segments. The three- and nine-month periods of 2012 include $(0.2) million and $0.4 million, respectively, of workers' compensation insurance expenses (credits) included in gross profit and not allocated to the operating segments.

Financial_Information_by_Repor1

Financial Information by Reportable Segment (Parenthetical) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Segment Reporting Information [Line Items]
Workers compensation insurance expenses (credits)	$0.10	($0.20)	$1.20	$0.40
General and Administrative Expense
Segment Reporting Information [Line Items]
Business acquisition, transaction costs				0.3
Ducommun LaBarge Technologies
Segment Reporting Information [Line Items]
Business acquisition, transaction costs				$0.40

Segment_Assets_Detail

Segment Assets (Detail) (USD $)	Sep. 28, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Segment Reporting Information [Line Items]
Total Assets	$760,046	$785,074
Total Goodwill and Intangibles	330,128	338,296
Ducommun AeroStructures
Segment Reporting Information [Line Items]
Total Assets	252,476	248,326
Total Goodwill and Intangibles	65,775	67,459
Ducommun LaBarge Technologies
Segment Reporting Information [Line Items]
Total Assets	447,827	465,217
Total Goodwill and Intangibles	264,353	270,837
Corporate Administration
Segment Reporting Information [Line Items]
Total Assets	$59,743	$71,531