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
Accounting Policies
- Basis of Presentation (Policies)
Notes Tables
Notes Details

Stock-Based Compensation (Narrative) (Details)

v3.8.0.1

Stock-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based compensation expense	$ 5,236	$ 2,726
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend rate used	0.00%
Weighted average GDFV of unvested shares (in dollars per share)	$ 46.76
Aggregate fair value of all restricted shares	$ 1,800
Common Stock Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options to purchase shares granted (in shares)	143
Shares reserved for issuance upon exercise	1,200
Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options to purchase shares granted (in shares)	0
Shares reserved for issuance upon exercise	1,700
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested options	$ 24,000
Weighted average period for compensation cost to be recognized	1 year 8 months 12 days
RSAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested restricted shares	$ 23,000
Weighted average period for compensation cost to be recognized	1 year 9 months 18 days
Unvested restricted stock (in shares)	1,300
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested restricted stock (in shares)	27
CEO \| Common Stock Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options to purchase shares granted (in shares)	143
Granted options, weighted average GDFV (in dollars per share)	$ 16.55

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Aggregate number of common shares reserved for future issuance.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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Unrecognized cost of unvested options awarded to employees as compensation.

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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