Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details 2)

v2.4.1.9
Income Taxes (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Income Taxes  
Tax credit carryforward after tax $ 20.2lbrda_TaxCreditCarryforwardsAfterTax
Operating loss carryforwards expected to be unutilized 8.2us-gaap_OperatingLossCarryforwardsValuationAllowance
Excess share-based compensation deductions 2.0lbrda_ExcessShareBasedCompensationDeductions
Net operating loss carryforward for excess share-based compensation deduction $ 5.7lbrda_NetOperatingLossCarryforwardExcessShareBasedCompensation