Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Feb. 06, 2023	Jul. 02, 2022
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-08174
Entity Registrant Name	DUCOMMUN INCORPORATED
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	95-0693330
Entity Address, Address Line One	200 Sandpointe Avenue, Suite 700
Entity Address, City or Town	Santa Ana
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92707-5759
City Area Code	657
Local Phone Number	335-3665
Title of 12(b) Security	Common Stock, $.01 par value per share
Trading Symbol	DCO
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 529
Entity Common Stock, Shares Outstanding		12,146,494
Documents Incorporated by Reference	The following documents are incorporated by reference:(a) Proxy Statement for the 2023 Annual Meeting of Shareholders (the “2023 Proxy Statement”), incorporated partially in Part III hereof.
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Central Index Key	0000030305