Cash Equivalent Maturity Period

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- Definition

Income Tax Benefit Percentage

+ References

No definition available.

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- Definition

New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Deferred Tax Assets

+ References

No definition available.

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- Definition

Costs incurred for certain long-term contracts that require machinery or tools to build the parts as specified within the contract. These costs include production and tooling costs. The production contract costs are recorded to costs of sales using the units of delivery method.

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 6

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-Topic 740

-SubTopic 10

-Section 50

-Paragraph 8

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 45

-Paragraph 4

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2)

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-Topic 330

-SubTopic 10

-Section 50

-Paragraph 2

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- Definition

Losses recognized in the current period on contracts which are expected to generate losses, which are probable and can be reasonably estimated, in a future period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

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-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

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- Definition

Nonrecurring impairment charges related to the write-off of production-related equipment and inventory. This tag is used when an Entity charges this cost to cost of goods sold.

+ References

+ Details

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- Definition

Cumulative provision for contract losses not offset against related costs accumulated on the balance sheet.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 35

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6802688&loc=d3e57777-111642

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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended			3 Months Ended
	Dec. 31, 2013	Dec. 31, 2014 Segment	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013
Significant Accounting Policies [Line Items]
Number of reportable segments		2us-gaap_NumberOfReportableSegments
Cash equivalent maturity period		three months or less
Forward loss provision	$ 5,200,000us-gaap_LossOnContracts
Provision for forward loss reserves	9,494,000us-gaap_ProvisionForLossOnContracts	4,734,000us-gaap_ProvisionForLossOnContracts	9,494,000us-gaap_ProvisionForLossOnContracts		4,734,000us-gaap_ProvisionForLossOnContracts
Deferred income taxes	(12,669,000)us-gaap_DeferredTaxAssetsDeferredIncome	(13,783,000)us-gaap_DeferredTaxAssetsDeferredIncome	(12,669,000)us-gaap_DeferredTaxAssetsDeferredIncome		(13,783,000)us-gaap_DeferredTaxAssetsDeferredIncome	(15,185,000)us-gaap_DeferredTaxAssetsDeferredIncome	(12,929,000)us-gaap_DeferredTaxAssetsDeferredIncome	(15,340,000)us-gaap_DeferredTaxAssetsDeferredIncome	(8,711,000)us-gaap_DeferredTaxAssetsDeferredIncome	(9,152,000)us-gaap_DeferredTaxAssetsDeferredIncome	(13,309,000)us-gaap_DeferredTaxAssetsDeferredIncome
Accrued liabilities	(50,122,000)us-gaap_AccruedLiabilitiesCurrent	(52,066,000)us-gaap_AccruedLiabilitiesCurrent	(50,122,000)us-gaap_AccruedLiabilitiesCurrent		(52,066,000)us-gaap_AccruedLiabilitiesCurrent	(46,787,000)us-gaap_AccruedLiabilitiesCurrent	(51,562,000)us-gaap_AccruedLiabilitiesCurrent	(43,452,000)us-gaap_AccruedLiabilitiesCurrent	(43,620,000)us-gaap_AccruedLiabilitiesCurrent	(53,047,000)us-gaap_AccruedLiabilitiesCurrent	(45,101,000)us-gaap_AccruedLiabilitiesCurrent
Deferred Income Taxes	(67,989,000)	(69,448,000)	(67,989,000)		(69,448,000)	(72,578,000)	(69,247,000)	(70,056,000)	(63,883,000)	(65,359,000)	(65,765,000)
Asset impairments		0	6,975,000	0
Production cost of contracts	11,599,000dco_ProductionCostOfContractsCurrent	11,727,000dco_ProductionCostOfContractsCurrent	11,599,000dco_ProductionCostOfContractsCurrent		11,727,000dco_ProductionCostOfContractsCurrent	10,375,000dco_ProductionCostOfContractsCurrent	11,023,000dco_ProductionCostOfContractsCurrent	10,479,000dco_ProductionCostOfContractsCurrent	19,926,000dco_ProductionCostOfContractsCurrent	19,049,000dco_ProductionCostOfContractsCurrent	20,193,000dco_ProductionCostOfContractsCurrent
Accounting Standards Update 2013-11
Significant Accounting Policies [Line Items]
Change in deferred tax assets		700,000			700,000
Maximum
Significant Accounting Policies [Line Items]
Estimated useful life of intangible assets (in years)		18 years
Minimum
Significant Accounting Policies [Line Items]
Income tax benefit percentage		50.00%
Estimated useful life of intangible assets (in years)		3 years
Ducommun AeroStructures
Significant Accounting Policies [Line Items]
Forward loss provision	5,200,000
Asset impairments	7,000,000
Embraer Legacy 400/500 \| Ducommun AeroStructures
Significant Accounting Policies [Line Items]
Forward loss provision	3,900,000
Inventory write-down	1,900,000				1,900,000
Asset impairments	5,700,000
Boeing 777 \| Ducommun AeroStructures
Significant Accounting Policies [Line Items]
Forward loss provision	1,300,000
Asset impairments	1,300,000
Accrued Liabilities
Significant Accounting Policies [Line Items]
Provision for forward loss reserves	4,200,000		4,200,000
Other Long-term Liabilities
Significant Accounting Policies [Line Items]
Provision for forward loss reserves	1,000,000		1,000,000
Restatement Adjustment
Significant Accounting Policies [Line Items]
Deferred income taxes	(1,819,000)		(1,819,000)			(1,521,000)	(1,416,000)	(1,504,000)	(1,601,000)	(2,136,000)	(2,232,000)
Accrued liabilities	(4,669,000)		(4,669,000)			(3,871,000)	(3,589,000)	(3,824,000)	(4,300,000)	(4,655,000)	(5,053,000)
Deferred Income Taxes	500,000		500,000			500,000	500,000	500,000	621,000	621,000	621,000
Asset impairments			0
Production cost of contracts	$ 0		$ 0			$ 0	$ 0	$ 0	$ 0	$ 0	$ 0