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Cover - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2023
Feb. 14, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 000-09881    
Entity Registrant Name SHENANDOAH TELECOMMUNICATIONS COMPANY    
Entity Incorporation, State or Country Code VA    
Entity Tax Identification Number 54-1162807    
Entity Address, Address Line One 500 Shentel Way    
Entity Address, City or Town Edinburg    
Entity Address, State or Province VA    
Entity Address, Postal Zip Code 22824    
City Area Code 540    
Local Phone Number 984-4141    
Title of 12(b) Security Common Stock (No Par Value)    
Trading Symbol SHEN    
Security Exchange Name NASDAQ    
Entity Common Stock, Shares Outstanding   50,272,192  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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 Public Float     $ 0.7
Documents Incorporated by Reference
Portions of the registrant’s definitive proxy statement relating to its 2024 annual meeting of shareholders (the “2024 Proxy Statement”) are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. The 2024 Proxy Statement will be filed with the U.S. Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.
    
Entity Central Index Key 0000354963    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false