Quarterly report [Sections 13 or 15(d)]

Document and Entity Information

v3.26.1
Document and Entity Information
 3 Months Ended
Mar. 31, 2026
shares
Document Information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Mar. 31, 2026
Document Transition Report false
Entity File Number 001-36713
Entity Registrant Name LIBERTY BROADBAND CORPORATION
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 47-1211994
Entity Address, Address Line One 12300 Liberty Boulevard
Entity Address, City or Town Englewood
Entity Address, State or Province CO
Entity Address, Postal Zip Code 80112
City Area Code 720
Local Phone Number 875-5700
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
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q1
Entity Central Index Key 0001611983
Amendment Flag false
Series A common stock  
Document Information [Line Items]  
Title of 12(b) Security Series A common stock
Trading Symbol LBRDA
Security Exchange Name NASDAQ
Entity Common Stock, Shares Outstanding 18,254,690
Series B common stock  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 386,988
Series C common stock  
Document Information [Line Items]  
Title of 12(b) Security Series C common stock
Trading Symbol LBRDK
Security Exchange Name NASDAQ
Entity Common Stock, Shares Outstanding 124,856,052
Series A cumulative redeemable preferred stock  
Document Information [Line Items]  
Title of 12(b) Security Series A Cumulative Redeemable preferred stock
Trading Symbol LBRDP
Security Exchange Name NASDAQ