Debt

Consolidated debt consisted of the following (in thousands):



	Encumbered	Interest	Maturity	December 31,
	Hotels	Rate (%)	Date	2015		2014
Senior unsecured notes	—	6.00	June 2025	$	475,000	$	—
Senior secured notes	9	5.625	March 2023	525,000		525,000
Mortgage debt^(a)	4	4.95	October 2022	122,237		124,278
Mortgage debt	1	4.94	October 2022	30,717		31,228
Line of credit^(b)	7	LIBOR + 2.75	June 2019	190,000		—
Knickerbocker loan^(c)	1	LIBOR + 3.00	November 2017	85,000		64,861
Retired debt	—	—	—	—		840,500
Total	22			$	1,427,954	$	1,585,867


(a)	This debt is comprised of separate non-cross-collateralized loans, each secured by a mortgage encumbering different hotels.


(b)	Our line of credit can be extended for one year, subject to satisfying certain conditions. We may borrow up to $400 million under our line of credit.


(c)	This loan can be extended for one year, subject to satisfying certain conditions At December 31, 2014, $6.3 million of this loan was secured by cash collateral with an interest rate of LIBOR + 1.25%.

In February 2015, we sold a hotel and repaid $13.0 million in mortgage debt secured by that hotel that would have otherwise matured in March 2017.

In May 2015, we issued $475 million aggregate principal amount of our 6.00% unsecured senior notes due 2025. We used the proceeds from that issuance, together with cash on hand and funds drawn under our line of credit, to repurchase and redeem $525 million in aggregate principal amount of our 6.75% senior secured notes due 2019, which was secured by mortgages on six hotels. We incurred $28.4 million of debt extinguishment charges relating to prepayment premiums and the write-off of deferred loan costs in connection with this transaction. All cash paid to satisfy the extinguishment of the senior secured notes is classified as a financing activity in the statements of cash flows.

In June 2015, we amended and restated our secured line of credit facility primarily to expand our borrowing capacity from $225 million to $400 million. The amended facility now matures in June 2020 (extended from June 2017), assuming we exercise a one-year extension option that is subject to certain conditions. Borrowings under the facility bear interest at LIBOR (no floor) plus an applicable margin ranging from 225 to 275 basis points (reduced from 337.5 basis points), depending on our leverage. The unused commitment fee decreased 5 basis points to 35 basis points. The facility is secured by mortgages on seven hotels and permits partial release and substitution of properties, subject to certain conditions. We incurred $164,000 of debt extinguishment charges (relating to writing-off deferred loan costs) when amending the facility. We concurrently repaid a $140 million term loan that otherwise matured in 2017, bore interest at LIBOR plus 250 basis points and was secured by mortgages on three hotels, including one hotel that is part of the security for the amended facility. We incurred $2.0 million of debt extinguishment charges relating to writing-off deferred loan costs for the repaid loan.

In June 2015, when we sold two hotels, we repaid a $49.1 million loan secured by mortgages on three hotels (including the two sold hotels), that would have otherwise matured in March 2017. We sold the remaining hotel that had been mortgaged to secure this loan in September 2015. We incurred $237,000 of debt extinguishment charges relating to writing-off deferred loan costs for the repaid loan.

10. Debt — (continued)

During 2015, we increased our borrowings under our loan secured by The Knickerbocker from $64.9 million to the $85.0 million commitment. Also, in November 2015, we amended our Knickerbocker loan to lower the interest rate to LIBOR plus 300 basis points and extend the maturity to November 2018, subject to satisfying certain conditions.

In January 2014, we repaid a $10.9 million secured loan, otherwise maturing in July 2014, when we sold a hotel. In March 2014, we repaid a $17.1 million loan, secured by a hotel, otherwise maturing in June 2014. We incurred $251,000 of debt extinguishment costs in connection with repaying these loans.

In April 2014, we repaid two loans totaling $15.6 million, each secured by a hotel, otherwise maturing in July 2014. In May 2014, we repaid an additional $19.2 million loan, secured by a hotel, otherwise maturing in August 2014.

In July 2014, we obtained a $140 million term loan secured by three hotels. The loan bore interest at LIBOR (no floor) plus 2.5% and was repaid in June 2015.

In August 2014, we used proceeds from the July 2014 term loan, cash on hand and borrowings under our line of credit to repay the remaining $234 million of our 10% senior secured notes. These notes, which would have matured October 2014, were secured by 11 properties. We incurred $3.8 million of debt extinguishment costs in connection with repaying these notes.

In September 2014, we repaid a $9.6 million secured loan, otherwise maturing in July 2016, when we sold a hotel. We incurred $914,000 of debt extinguishment costs in connection with repaying this loan.

Our senior notes, which are guaranteed by FelCor, require that we satisfy total leverage, secured leverage and interest coverage tests in order to: (i) incur additional indebtedness, except to refinance maturing debt with replacement debt, as defined under our indentures; (ii) pay dividends in excess of the minimum distributions required to qualify as a REIT; (iii) repurchase capital stock; or (iv) merge. We currently exceed all minimum thresholds. In addition, our 5.625% senior notes are secured by a combination of first lien mortgages and related security interests on nine hotels, as well as pledges of equity interests in certain subsidiaries of FelCor LP, and the 6.00% senior unsecured notes require us to maintain at least a minimum amount of unencumbered assets.

At December 31, 2015, we had consolidated secured debt totaling $953.0 million, encumbering 22 of our consolidated hotels with a $1.1 billion aggregate net book value. Except for our 5.625% senior secured notes due 2023 and our line of credit, our secured debt is generally recourse solely to the specific hotels securing the debt, except in case of fraud, misapplication of funds and certain other customary limited recourse carve-out provisions that could extend recourse to us. Much of our secured debt allows us to substitute collateral under certain conditions and is freely prepayable, (subject in some instances to various prepayment, yield maintenance or defeasance obligations).

Most of our secured debt (other than our 5.625% senior secured notes and our line of credit) is subject to lock-box arrangements under certain circumstances. We are permitted to spend an amount required to cover our hotel operating expenses, taxes, debt service, insurance and capital expenditure reserves, even if revenues are flowing through a lock-box triggered by a specified debt service coverage ratio not being met. All of our consolidated loans subject to lock-box provisions currently exceed the applicable minimum debt service coverage ratios.

10. Debt — (continued)

We reported $79.1 million, $90.7 million, and $103.8 million of interest expense for the years ended December 31, 2015, 2014, and 2013, respectively, which is net of: (i) interest income of $24,000, $48,000, and $78,000, and (ii) capitalized interest of $6.0 million, $16.3 million, and $12.8 million, respectively.

To fulfill requirements under one of our loans, we entered into an interest rate cap agreement with an aggregate notional amount of $140 million at December 31, 2015 and 2014. This interest rate cap was not designated as a hedge and had an insignificant fair value at December 31, 2015 and 2014, resulting in no significant impact on earnings.

Future scheduled principal payments on debt obligations at December 31, 2015 are as follows (in thousands):



Year
2016	$	2,488
2017	87,810
2018	2,954
2019	193,106
2020	3,245
Thereafter	1,138,351
	$	1,427,954