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Cover - shares
9 Months Ended
Sep. 30, 2022
Oct. 31, 2022
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2022  
Document Transition Report false  
Entity File Number 001-35940  
Entity Registrant Name CHANNELADVISOR CORPORATION  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 56-2257867  
Entity Address, Address Line One 3025 Carrington Mill Boulevard  
Entity Address, City or Town Morrisville  
Entity Address, State or Province NC  
Entity Address, Postal Zip Code 27560  
City Area Code 919  
Local Phone Number 228-4700  
Title of 12(b) Security Common Stock, $0.001 par value  
Trading Symbol ECOM  
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  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding (in shares)   28,916,493
Amendment Flag false  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q3  
Entity Central Index Key 0001169652  
Current Fiscal Year End Date --12-31