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Cover - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2023
Feb. 22, 2024
Jun. 30, 2023
Cover [Abstract]      
Entity Central Index Key 0000863436    
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Document Period End Date Dec. 31, 2023    
Entity Registrant Name BENCHMARK ELECTRONICS, INC.    
Entity File Number 1-10560    
Entity Incorporation, State or Country Code TX    
Entity Tax Identification Number 74-2211011    
Entity Address, Address Line One 56 South Rockford Drive    
Entity Address, City or Town Tempe    
Entity Address, State or Province AZ    
Entity Address, Postal Zip Code 85288    
City Area Code 623    
Local Phone Number 300-7000    
Title of 12(b) Security Common Stock, par value $0.10 per share    
Trading Symbol BHE    
Security Exchange Name NYSE    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   35,774,555  
Entity Public Float     $ 0.9
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer Yes    
Documents Incorporated by Reference

Documents Incorporated by Reference:

Portions of the registrant’s Proxy Statement for the 2024 Annual Meeting of Shareholders, to be filed with the Securities and Exchange Commission not later than 120 days after the end of the registrant’s fiscal year ended December 31, 2023, are incorporated herein by reference (Part III, Items 10-14 of this Annual Report on Form 10-K).

    
Auditor Firm ID 185    
Auditor Name KPMG LLP    
Auditor Location Phoenix, Arizona