(8) Debt

On October 30, 2014, in connection with and prior to the effectiveness of the Broadband Spin-Off, a wholly-owned special purpose subsidiary of the Company ("BroadbandSPV") entered into two margin loan agreements (the "Margin Loan Agreements") with each of the lenders party thereto. The Margin Loan Agreements permit BroadbandSPV, subject to certain funding conditions, to borrow term loans up to an aggregate principal amount equal to $400 million (the "Margin Loans"), of which BroadbandSPV borrowed $320 million on October 31, 2014 and had $80 million available to be drawn immediately following the Broadband Spin-Off. During November 2014, subsequent to the Broadband Spin-Off, Liberty Broadband borrowed an additional $52 million to fund the exercise of the Charter warrants. As of December 31, 2014, Liberty Broadband had $372.0 million outstanding under the Margin Loan Agreements, with an additional $28.0 million available to be drawn. $300 million of the amount borrowed pursuant to the Margin Loan Agreements (less certain expenses incurred in connection with the Margin Loans) was distributed to Liberty prior to the Broadband Spin-Off. The maturity date of the Margin Loans is October 30, 2017. Borrowings under the Margin Loan Agreements bear interest at the three-month LIBOR rate plus 1.55%. Interest is payable quarterly in arrears beginning on December 31, 2014. The Margin Loan Agreements contain various affirmative and negative covenants that restrict the activities of BroadbandSPV. The Margin Loan Agreements do not include any financial covenants. The Margin Loan Agreements also contain certain restrictions related to additional indebtedness.

BroadbandSPV's obligations under the Margin Loan Agreements are guaranteed by the Company. In addition, BroadbandSPV's obligations are secured by first priority liens on a portion of the Company's ownership interest in Charter, sufficient for BroadbandSPV to meet its loan to value requirement under the Margin Loan Agreements. Each agreement contains language that indicates that Liberty Broadband, as borrower and transferor of underlying shares as collateral, has the right to exercise all voting, consensual and other powers of ownership pertaining to the transferred shares for all purposes, provided that Liberty Broadband agrees that it will not vote the shares in any manner that would reasonably be expected to give rise to transfer or other certain restrictions. Similarly, the loan agreements indicate that no lender party shall have any voting rights with respect to the shares transferred, except to the extent that a lender party buys any shares in a sale or other disposition made pursuant to the terms of the loan agreements. As of December 31, 2014, 7.0 million shares of Charter with a value of $1.2 billion were pledged as collateral pursuant to the Margin Loans.

TruePosition had a $4 million line of credit, which expired on December 25, 2013, covering standby letters of credit issued for the benefit of TruePosition. Pursuant to the terms of the line of credit, upon its expiration, any issued and outstanding letters of credit remain in effect through the remainder of their respective terms. $634 thousand in letters of credit were outstanding and those letters of credit remain outstanding as of December 31, 2014 and 2013. Letters of credit issued under the line of credit prior to its expiration remain collateralized by a cash deposit maintained by the bank (note 3), which will remain in place during the remaining terms of the outstanding letters of credit.

The line of credit bore interest at the rate of four-tenths of 1% per annum on the balance available for issuance of letters of credit. Letters of credit issued under the line of credit bore interest at 2.5% through March 2012, and 1.75% thereafter. All interest was payable quarterly. Interest expense related to the line of credit was not significant for the years ended December 31, 2014, 2013, or 2012.