Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details 3)

v2.4.1.9
Commitments and Contingencies (Details 3) (Revenue, Customer concentration, Significant customer)
 12 Months Ended
Dec. 31, 2014
customer
Dec. 31, 2013
Dec. 31, 2012
Revenue | Customer concentration | Significant customer
      
Certain Risks and Concentrations      
Number of major customers 1lbrda_NumberOfCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= lbrda_SignificantCustomerMember 		   
Concentration risk percentage 83.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= lbrda_SignificantCustomerMember 		85.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= lbrda_SignificantCustomerMember 		93.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= lbrda_SignificantCustomerMember