Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.22.0.1
Document and Entity Information - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2021
Jan. 26, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2021    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-34666    
Entity Registrant Name MaxLinear Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 14-1896129    
Entity Address, Address Line One 5966 La Place Court, Suite 100,    
Entity Address, City or Town Carlsbad    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92008    
City Area Code 760    
Local Phone Number 692-0711    
Title of 12(b) Security Common stock    
Trading Symbol MXL    
Security Exchange Name NASDAQ    
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 Emerging Growth Company false    
Entity Small Business false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 3.0
Entity Common Stock, Shares Outstanding   76,784,973  
Documents Incorporated by Reference Information required by Part III of this Form 10-K is incorporated by reference to the registrant’s proxy statement or the Proxy Statement, for the 2022 annual meeting of stockholders, which proxy statement will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year covered by this Form 10-K.    
Entity Central Index Key 0001288469    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false