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
- Business and Summary of Significant Accounting Principles (Policies)
Notes Tables
Notes Details

Variable Interest Entities (Details)

v2.4.0.8

Variable Interest Entities (Details) (Primary Beneficiary [Member], USD $) In Millions, unless otherwise specified	9 Months Ended		0 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Aug. 30, 2011 NMTC 1 [Member]	Aug. 30, 2011 NMTC 1 [Member] Minimum [Member]	Aug. 30, 2011 NMTC 1 [Member] Maximum [Member]	Oct. 03, 2012 NMTC 2 [Member]	Oct. 03, 2012 NMTC 2 [Member] Minimum [Member]	Oct. 03, 2012 NMTC 2 [Member] Maximum [Member]	Dec. 11, 2012 NMTC 3 [Member]	Dec. 11, 2012 NMTC 3 [Member] Maximum [Member]	Aug. 30, 2011 US Bancorp [Member] NMTC 1 [Member]	Oct. 03, 2012 US Bancorp [Member] NMTC 2 [Member]	Dec. 11, 2012 US Bancorp [Member] NMTC 3 [Member]	Aug. 30, 2011 Community Development Entities [Member] NMTC 1 [Member]	Oct. 03, 2012 Community Development Entities [Member] NMTC 2 [Member]	Dec. 11, 2012 Community Development Entities [Member] NMTC 3 [Member]
Variable Interest Entity [Line Items]
Project fund	$ 59.3		$ 58.3			$ 37.7			$ 8.2
Tax credit percentage	39.00%
Amount to other entity											22.4	17.5	3.8	76.8	55.2	12.0
Interest rate percentage			1.00%	1.00%	3.96%	1.00%	0.7099%	0.7693%	1.00%	1.35%
Restricted cash	1.1	6.9
Percentage of recapture	100.00%
Recapture period	7 years
Assets	140.9	140.9
Liabilities	$ 104.2	$ 104.2

- Definition

Variable Interest Entity, Financial or Other Support, Amount To Other Entity

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Variable Interest Entity, Financial or Other Support, Interest Rate Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	gncma_
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- Definition

Variable Interest Entity, Percentage of Recapture

+ References

No definition available.

+ Details

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Namespace Prefix:	gncma_
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Period Type:	duration

- Definition

Variable Interest Entity, Recapture Period

+ References

No definition available.

+ Details

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- Definition

Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to investment tax credit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 6.I)

-URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319

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- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (bb)

-URI http://asc.fasb.org/extlink&oid=28200181&loc=d3e5710-111685

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Balance Type:	debit
Period Type:	instant

- Definition

The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 5A

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=28200181&loc=SL6759159-111685

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