Liberty Broadband Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Description of Business (Details)

v3.8.0.1

Description of Business (Details) $ in Millions			12 Months Ended
Description of Business (Details) $ in Millions	Dec. 31, 2015	Feb. 14, 2014 USD ($)	Dec. 31, 2017 customer item	Dec. 31, 2016	Dec. 31, 2015 customer
Skyhook
Business Acquisition [Line Items]
Number of primary products sold \| item			2
Skyhook \| Skyhook
Business Acquisition [Line Items]
Voting interest acquired (as a percent)		100.00%
Cash paid for acquisition \| $		$ 57.5
Charter
Business Acquisition [Line Items]
Number of business and residential customers			27,200,000
Customer concentration \| Revenue \| Skyhook
Business Acquisition [Line Items]
Number of major customers					1
Customer concentration \| Revenue \| Significant customer \| Skyhook
Business Acquisition [Line Items]
Concentration risk percentage			57.00%	57.00%	85.00%
Customer concentration \| Revenue \| Significant customer \| Skyhook \| Customer relationships \| Minimum
Business Acquisition [Line Items]
Concentration risk percentage	80.00%
Customer concentration \| Revenue \| Significant customer \| Skyhook \| Customer relationships \| Maximum
Business Acquisition [Line Items]
Concentration risk percentage	90.00%

- Definition

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