| Document And Entity Information | Jan. 09, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Document Period End Date | Jan. 09, 2023 |
| Entity Registrant Name | BENCHMARK ELECTRONICS, INC. |
| Entity Central Index Key | 0000863436 |
| Entity Emerging Growth Company | false |
| Securities Act File Number | 001-10560 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.10 per share |
| Trading Symbol | BHE |
| Security Exchange Name | NYSE |
| Amendment Description | As previously disclosed in the Current Report on Form 8-K filed on January 9th, 2023, Benchmark Electronics, Inc. announced the appointment of Douglas Britt as an independent director to the Board of Directors of the Company effective immediately. This Form 8-K/A amends the Current Report on Form 8-K referred to above to announce that Douglas Britt will serve as a member of the Audit Committee. |
