Liberty Broadband Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Notes Tables
Notes Details

Assets and Liabilities Measured at Fair Value (Details)

v3.21.1

Assets and Liabilities Measured at Fair Value (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 18, 2020
1.75% Exchangeable Senior Debentures due 2046
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest rate (as a percent)	1.75%		1.75%
1.25% Exchangeable Senior Debentures due 2050
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest rate (as a percent)	1.25%		1.25%
2.75% Exchangeable Senior Debentures due 2050
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest rate (as a percent)	2.75%		2.75%
Exchangeable senior debentures
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Change in fair value		$ 0
Cumulative change	$ 8,800,000
Exchangeable senior debentures \| 1.75% Exchangeable Senior Debentures due 2046 \| Indemnification obligation
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Indemnity obligation recorded				$ 336,100,000
Exchangeable senior debentures \| 1.75% Exchangeable Senior Debentures due 2046 \| Indemnification obligation \| LI LLC
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest rate (as a percent)	1.75%
Exchangeable senior debentures
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Change in fair value	$ 205,000

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