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Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Feb. 10, 2023
Jul. 01, 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 001-34674    
Entity Registrant Name Calix, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 68-0438710    
Entity Address, Address Line One 2777 Orchard Parkway    
Entity Address, City or Town San Jose    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 95134    
City Area Code 408    
Local Phone Number 514-3000    
Title of 12(b) Security Common Stock, $0.025 par value    
Trading Symbol CALX    
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 Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 2,002
Entity Common Stock, Shares Outstanding   66,139,488  
Entity Central Index Key 0001406666    
Amendment Flag false    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Documents Incorporated by Reference
DOCUMENTS INCORPORATED BY REFERENCE
Portions of the registrant’s definitive proxy statement for its 2023 annual meeting of stockholders are incorporated by reference in Items 10, 11, 12, 13 and 14 of Part III.