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

Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangible Assets (Details 2)

Goodwill and Other Intangible Assets (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Intangible assets subject to amortization
Gross Carrying Amount	$ 32,813,000	$ 13,804,000
Accumulated Amortization	(19,898,000)	(13,375,000)
Net Carrying Amount	12,915,000us-gaap_FiniteLivedIntangibleAssetsNet	429,000us-gaap_FiniteLivedIntangibleAssetsNet
Amortization expense	6,500,000us-gaap_AmortizationOfIntangibleAssets	1,400,000us-gaap_AmortizationOfIntangibleAssets	2,300,000us-gaap_AmortizationOfIntangibleAssets
Estimated future amortization expense
2015	3,265,000
2016	3,170,000
2017	3,063,000
2018	3,035,000
2019	382,000
Net Carrying Amount	12,915,000us-gaap_FiniteLivedIntangibleAssetsNet	429,000us-gaap_FiniteLivedIntangibleAssetsNet
Minimum
Intangible assets subject to amortization
Useful life	3 years
Maximum
Intangible assets subject to amortization
Useful life	5 years
Patents
Intangible assets subject to amortization
Gross Carrying Amount	8,822,000	3,110,000
Accumulated Amortization	(5,801,000)	(3,085,000)
Net Carrying Amount	3,021,000	25,000
Estimated future amortization expense
Net Carrying Amount	3,021,000	25,000
Patents \| TruePosition
Intangible assets subject to amortization
Useful life	3 years
Tradename
Intangible assets subject to amortization
Gross Carrying Amount	2,788,000
Accumulated Amortization	(788,000)
Net Carrying Amount	2,000,000
Estimated future amortization expense
Net Carrying Amount	2,000,000
Tradename \| TruePosition
Intangible assets subject to amortization
Useful life	5 years
Capitalized software
Intangible assets subject to amortization
Gross Carrying Amount	10,991,000	10,694,000
Accumulated Amortization	(10,597,000)	(10,290,000)
Net Carrying Amount	394,000	404,000
Estimated future amortization expense
Net Carrying Amount	394,000	404,000
Capitalized software \| TruePosition \| Minimum
Intangible assets subject to amortization
Useful life	3 years
Capitalized software \| TruePosition \| Maximum
Intangible assets subject to amortization
Useful life	5 years
Customer relationships
Intangible assets subject to amortization
Gross Carrying Amount	10,212,000
Accumulated Amortization	(2,712,000)
Net Carrying Amount	7,500,000
Estimated future amortization expense
Net Carrying Amount	$ 7,500,000