Debt

All of the Company's indebtedness is debt of the Operating Partnership. AH4R is not directly obligated under any indebtedness, but guarantees some of the debt of the Operating Partnership. The following table presents the Company’s debt as of December 31, 2017 and 2016 (in thousands):



				Outstanding Principal Balance
	Interest Rate (1)		Maturity Date	December 31, 2017			December 31, 2016
AH4R 2014-SFR1 securitization (2)	N/A		N/A	$	—		$	456,074
AH4R 2014-SFR2 securitization	4.42	%	October 9, 2024	496,326			501,810
AH4R 2014-SFR3 securitization	4.40	%	December 9, 2024	512,041			517,827
AH4R 2015-SFR1 securitization (3)	4.14	%	April 9, 2045	537,723			543,480
AH4R 2015-SFR2 securitization (4)	4.36	%	October 9, 2045	467,267			472,043
Total asset-backed securitizations				2,013,357			2,491,234
Exchangeable senior notes	3.25	%	November 15, 2018	115,000			115,000
Secured note payable	4.06	%	July 1, 2019	48,859			49,828
Revolving credit facility (5)	2.76	%	June 30, 2022	140,000			—
Term loan facility (6)	2.91	%	June 30, 2022	200,000			325,000
Total debt (7)				2,517,216			2,981,062
Unamortized discount on exchangeable senior notes				(895		)	(1,883		)
Equity component of exchangeable senior notes				(2,408		)	(4,969		)
Deferred financing costs, net (8)				(38,026		)	(51,636		)
Total debt per balance sheet				$	2,475,887		$	2,922,574


(1)	Interest rates are as of December 31, 2017. Unless otherwise stated, interest rates are fixed percentages.


(2)	The AH4R 2014-SFR1 securitization was paid off in full during the second quarter of 2017.


(3)	The AH4R 2015-SFR1 securitization has a maturity date of April 9, 2045, with an anticipated repayment date of April 9, 2025.


(4)	The AH4R 2015-SFR2 securitization has a maturity date of October 9, 2045, with an anticipated repayment date of October 9, 2025.

(5)

The revolving credit facility provides for a borrowing capacity of up to $800.0 million, with a fully extended maturity date of June 2022, and bears interest at a LIBOR rate plus a margin ranging from 0.825% to 1.55% or a base rate (generally determined according to a prime rate or federal funds rate) plus a margin ranging from 0.00% to 0.55%. The interest rate stated represents the applicable spread for LIBOR based borrowings as of December 31, 2017, plus 1-month LIBOR.

(6)

The term loan facility provides for a borrowing capacity of up to $200.0 million, with a maturity date of June 2022, and bears interest at a LIBOR rate plus a margin ranging from 0.90% to 1.75% or a base rate (generally determined according to a prime rate or federal funds rate) plus a margin ranging from 0.00% to 0.75%. The interest rate stated represents the applicable spread for LIBOR based borrowings as of December 31, 2017, plus 1-month LIBOR.


(7)	The Company was in compliance with all debt covenants associated with its asset-backed securitizations, secured note payable, revolving credit facility and term loan facility as of December 31, 2017 and 2016.


(8)	Deferred financing costs relate to our asset-backed securitizations and our term loan facility. Amortization of deferred financing costs was $6.4 million, $8.5 million and $7.0 million for the years ended December 31, 2017, 2016 and 2015, respectively, which has been included in gross interest, prior to interest capitalization.

Early Extinguishment of Debt

During the year ended December 31, 2017, the Company paid off the outstanding principal on the AH4R 2014-SFR1 asset-backed securitization of approximately $455.4 million using proceeds from the Class A common share offering in the first quarter of 2017 and available cash, which resulted in $6.6 million of charges primarily related to the write-off of unamortized deferred financing costs. The payoff of the AH4R 2014-SFR1 asset-backed securitization also resulted in the release of the 3,799 homes pledged as collateral and $9.4 million of restricted cash for lender requirements. During the year ended December 31, 2016, the Company paid off the ARP 2014-SFR1 asset-backed securitization using available cash and borrowings from our credit facilities, which resulted in a $10.7 million charge related to the write-off of the discount on the securitization. The payoff of the ARP 2014-SFR1 asset-backed securitization also resulted in the release of the 2,875 homes pledged as collateral and $10.1 million of restricted cash for lender requirements. Also during 2016, the Company terminated our previous credit facility, which resulted in $2.7 million of charges related to the write-off of unamortized deferred financing costs. There was no early extinguishment of debt during the year ended December 31, 2015. The charges resulting from early extinguishment of debt were included in loss on early extinguishment of debt within the consolidated statements of operations.

Debt Maturities

The following table summarizes the contractual maturities of the Company's debt on a fully extended basis as of December 31, 2017 (in thousands):



2018	$	136,723
2019	68,564
2020	20,714
2021	20,714
2022	360,714
Thereafter	1,909,787
Total debt	2,517,216
Unamortized discounts and deferred financing costs (1)	(41,329		)
Total debt per balance sheet	$	2,475,887


(1)	Includes the unamortized discount and equity component of the exchangeable senior notes and deferred financing costs, net.

Encumbered Properties

The following table displays the number of properties pledged as collateral for the Company's asset-backed securitization loans and secured note payable and the aggregate net book values as of December 31, 2017 and 2016 (in thousands, except property data):



	As of December 31, 2017			As of December 31, 2016
	Number of Properties	Net Book Value		Number of Properties	Net Book Value
AH4R 2014-SFR1 securitization (1)	—	$	—	3,803	$	575,421
AH4R 2014-SFR2 securitization (2)	4,481	627,988		4,484	650,175
AH4R 2014-SFR3 securitization (3)	4,499	680,788		4,503	706,262
AH4R 2015-SFR1 securitization (4)	4,658	685,055		4,660	710,778
AH4R 2015-SFR2 securitization (5)	4,124	635,612		4,124	658,792
Secured note payable	572	71,868		572	73,780
Total encumbered properties	18,334	$	2,701,311	22,146	$	3,375,208


(1)	During the years ended December 31, 2017 and 2016, the Company sold 2 and 47 properties, respectively, and had 2 properties that were disqualified for a total release price of $0.7 million and $14.5 million, respectively, which was used to pay down the principal balance on the loan. The AH4R 2014-SFR1 securitization was paid off in full during the second quarter of 2017.


(2)	During each of the years ended December 31, 2017 and 2016, the Company had 3 properties that were disqualified for a total release price of $0.4 million, which was used to pay down the principal balance on the loan.


(3)	During the year ended December 31, 2017, the Company had 4 properties that were disqualified for a total release price of $0.5 million, which was used to pay down the principal balance on the loan.


(4)	During the years ended December 31, 2017 and 2016, the Company had 2 and 1 properties that were disqualified, respectively, for a total release price of $0.2 million and $0.1 million, respectively, which was used to pay down the principal balance on the loan.


(5)	During the year ended December 31, 2016, the Company had 1 property that was disqualified for a total release price of $0.1 million, which was used to pay down the principal balance on the loan.

Unsecured Senior Notes

In February 2018, the Operating Partnership issued $500.0 million of 4.25% unsecured senior notes with a maturity date of February 15, 2028 (the "2028 Notes"). Interest on the 2028 Notes is payable semi-annually in arrears on February 15 and August 15 of each year, commencing on August 15, 2018. The Operating Partnership received net proceeds of $494.0 million from this issuance, after underwriting fees of approximately $3.2 million and a $2.8 million discount, and before estimated offering costs of $1.5 million. The Operating Partnership intends to use the net proceeds from this issuance for general corporate purposes, including, without limitation, acquisition of properties, the repayment of outstanding indebtedness, capital expenditures, the expansion, redevelopment and/or improvement of our properties, working capital and other general purposes, including repurchases of securities. The 2028 Notes are the Operating Partnership's unsecured and unsubordinated obligation and rank equally in right of payment with all of the Operating Partnership’s existing and future unsecured and unsubordinated indebtedness. The Operating Partnership may redeem the 2028 Notes at any time, in whole or in part, at the applicable redemption price specified in the Indenture with respect to the 2028 Notes. If the 2028 Notes are redeemed on or after November 15, 2027 (three months prior to the maturity date), the redemption price will be equal to 100% of the principal amount of the 2028 Notes being redeemed plus accrued and unpaid interest thereon to, but not including, the redemption date. The 2028 Notes have been initially guaranteed by American Residential Properties OP, L.P., (the “Guarantor Subsidiary”), a 100% owned subsidiary of the Operating Partnership, but such guarantee will be automatically released at the time that the Guarantor Subsidiary no longer guarantees our credit facility. Including the effect of a cash flow hedging instrument settled in February 2018 (see Note 14), the 2028 Notes yield an effective interest rate of 4.08%.

Asset-backed Securitizations

General Terms

As of December 31, 2017, the Company has completed multiple asset-backed securitizations, all of which have certain general characteristics in common. The asset-backed securitization transactions resulted in newly-formed special purpose entities (the “Borrowers”), which entered into loans with third-party lenders. The Borrowers are each wholly owned by respective special purpose entities (the “Equity Owners”), which are wholly owned by the Operating Partnership. The loans were represented by promissory notes that were immediately transferred by the third-party lenders to subsidiaries of the Company and then to REMIC trusts in exchange for single-family rental pass-through certificates representing all the beneficial ownership interests in the respective loans and trusts. Upon receipt of the certificates, the subsidiaries sold the certificates to investors. The principal amount of each class of certificates corresponds to the corresponding principal amount of the loan components with an additional class to hold the residual REMIC interest. The loans require monthly payments of interest together with principal payments representing one-twelfth of one percent of the original principal amount of the loans.

The loans are secured by first priority mortgages on pools of single-family residential properties transferred to the Borrowers from the Company’s portfolio of properties. The Borrowers’ homes were substantially similar to the other properties owned by the Company and were leased to tenants underwritten on substantially the same basis as the tenants in the Company’s other properties. During the duration of the loans, the Borrowers’ properties may not generally be transferred, sold or otherwise securitized, the Company can substitute properties only if a property owned by the Borrowers becomes a disqualified property under the terms of the loan, and the Borrowers are limited in their ability to incur any additional indebtedness. The loans are also secured by a security interest in all of the Borrowers’ personal property and a pledge of all of the assets of the Equity Owners, including a security interest in their membership interests in the Borrowers. The Company provides a limited guaranty (i) for certain losses arising out of designated acts of intentional misconduct and (ii) for the principal amount of the loans and all other obligations under the loan agreements in the event of insolvency or bankruptcy proceedings.

The Company has accounted for the transfers of the notes from its subsidiaries to the trusts as sales under ASC 860, Transfers and Servicing, with no resulting gain or loss as the notes were both originated by the third party lenders and immediately transferred at the same fair market value. The Company has also evaluated and not identified any variable interests in the trusts. Accordingly, the Company consolidates, at historical cost basis, the homes placed as collateral for the notes, and the principal balances outstanding on the notes are included in asset-backed securitizations, net within the consolidated balance sheets.

The loan agreements provide that the Borrowers maintain covenants typical for securitization transactions including maintaining certain reserve accounts and a debt service coverage ratio of at least 1.20 to 1.00. The loan agreements define the debt service coverage ratio as of any determination date as a ratio in which the numerator is the net cash flow divided by the aggregate debt service for the 12-month period following the date of determination. As of December 31, 2017 and 2016, the Company was in compliance with all covenants under the loan agreements.

AH4R 2014-SFR1 Securitization

The AH4R 2014-SFR1 securitization, which was completed in May 2014, was a two-year, floating rate loan for $481.0 million, comprised of six floating rate components computed monthly based on 1-month LIBOR for each interest period plus a fixed component spread for each of the six components resulting in a duration-weighted blended interest rate of LIBOR plus 1.54%, subject to a LIBOR floor of 0.25%. In addition, the Company entered into an interest rate cap agreement for the initial two year term of the loan, with a LIBOR based strike rate equal to 3.85%. The loan had three, 12-month extensions at the Borrower's option, resulting in a fully extended maturity date of June 9, 2019. The loan was originally secured by first priority mortgages on a pool of 3,852 single-family residential properties. Gross proceeds from the transaction were $481.0 million, before issuance costs of $14.9 million, and were used to pay down the outstanding balance on the credit facility. During the second quarter of 2017, the Company paid off the AH4R 2014-SFR1 asset-backed securitization in full.

AH4R 2014-SFR2 Securitization

The AH4R 2014-SFR2 securitization, which was completed in September 2014, is a fixed-rate loan for $513.3 million with a 10-year term, maturity date of October 9, 2024, and a duration-adjusted weighted-average interest rate of 4.42%. The loan was originally secured by first priority mortgages on a portfolio of 4,487 single-family residential properties. Also, in addition to the single-family rental pass-through certificates sold to third parties, the Company acquired all of the Class F certificates, which bear no interest, for $25.7 million. The Company has evaluated the purchased Class F certificates as a variable interest in the trust and has concluded that the Class F certificates will not absorb a majority of the trust's expected losses or receive a majority of the trust's expected residual returns. Additionally, the Company has concluded that the Class F certificates do not provide the Company with any ability to direct activities that could impact the trust's economic performance. The Company does not consolidate the trust and the $25.7 million of purchased Class F certificates have been reflected as asset-backed securitization certificates in the Company's consolidated balance sheets and as amounts due from affiliates in the Operating Partnership's consolidated balance sheets. Gross proceeds to the Company from the transaction, after purchase of the Class F certificates, were $487.7 million, before issuance costs of $12.9 million, and were used to pay down the outstanding balance on the credit facility and for general corporate purposes.

AH4R 2014-SFR3 Securitization

The AH4R 2014-SFR3 securitization, which was completed in November 2014, is a fixed-rate loan for $528.4 million with a 10-year term, maturity date of December 9, 2024, and a duration-adjusted weighted-average interest rate of 4.40%. The loan was originally secured by first priority mortgages on a portfolio of 4,503 single-family residential properties owned by the Borrower. Gross proceeds from the transaction were $528.4 million, before issuance costs of $12.9 million, and were used to pay down the outstanding balance on the credit facility and for general corporate purposes.

AH4R 2015-SFR1 Securitization

The AH4R 2015-SFR1 securitization, which was completed in March 2015, is a fixed-rate loan for $552.8 million with a 30-year term, maturity date of April 9, 2045, and a duration-adjusted weighted-average interest rate of 4.14%. The loan was originally secured by first priority mortgages on a pool of 4,661 single-family residential properties owned by the Borrower and has an anticipated repayment date of April 9, 2025. Gross proceeds from the transaction were $552.8 million, before issuance costs of $13.3 million, and were used to pay down the outstanding balance on the credit facility and for general corporate purposes.

AH4R 2015-SFR2 Securitization

The AH4R 2015-SFR2 securitization, which was completed in September 2015, is a fixed-rate loan for $477.7 million with a 30-year term, maturity date of October 9, 2045, and a duration-adjusted weighted-average interest rate of 4.36%. The loan was originally secured by first priority mortgages on a portfolio of 4,125 single-family residential properties owned by the Borrower and has an anticipated repayment date of October 9, 2025. Gross proceeds from the transaction were $477.7 million, before issuance costs of $11.3 million, and were used to pay down the outstanding balance on the credit facility and for general corporate purposes.

Exchangeable Senior Notes, Net

In connection with the ARPI Merger on February 29, 2016 (see Note 10), the Company assumed $115.0 million of 3.25% exchangeable senior notes due November 15, 2018. The exchangeable senior notes are senior unsecured obligations of the Operating Partnership and rank equally in right of payment with all other existing and future senior unsecured indebtedness of the Operating Partnership. Interest is payable in arrears on May 15 and November 15 of each year, which began on May 15, 2016, until the maturity date. The Operating Partnership’s obligations under the exchangeable senior notes are fully and unconditionally guaranteed by a subsidiary of the Company. The exchangeable senior notes bear interest at a rate of 3.25% per annum and contain an exchange settlement feature, which provides that the exchangeable senior notes may, under certain circumstances, be exchangeable for cash, the Company's Class A common shares or a combination of cash and the Company's Class A common shares, at the option of the Operating Partnership, based on an initial exchange rate of 46.9423 shares of ARPI's common stock per $1,000 principal amount of the notes. Settlements for cash will be paid for by the Operating Partnership, while settlements for the Company's Class A common shares will be issued by AH4R with the Operating Partnership issuing an equivalent number of Class A units to AH4R. The adjusted initial exchange rate would be 53.2795 of our Class A common shares per $1,000 principal amount of the notes, based on the 1.135 exchange ratio of ARPI shares to the Company's shares resulting from the ARPI Merger. The current exchange rate as of December 31, 2017, was 55.2716 of the Company's Class A common shares per $1,000 principal amount of the notes. The exchange rate is adjusted based on the Company's Class A common share price and distributions to common shareholders.

Prior to the close of business on the business day immediately preceding August 15, 2018, the notes will be exchangeable at the option of the holders only under the following circumstances: (1) during any calendar quarter beginning after December 31, 2013 (and only during such quarter) if the closing sale price per share of our common stock is more than 130% of the then-current exchange price for at least 20 trading days (whether or not consecutive) in the period of 30 consecutive trading days ending on the last trading day of the preceding calendar quarter; (2) during the 5 consecutive business-day period following any 5 consecutive trading-day period in which the trading price per $1,000 principal amount of notes was less than 98% of the product of the closing sale price per share of our common stock multiplied by the then-current exchange rate; or (3) upon the occurrence of specified corporate transactions described in the indenture. On or after August 15, 2018, the notes will be exchangeable at any time prior to the close of business on the second business day immediately preceding the maturity date. Subject to its election to satisfy its exchange obligations entirely in shares of our common stock, upon exchange, the Operating Partnership will pay or deliver, as the case may be, to exchanging holders in respect of each $1,000 principal amount of notes being exchanged a settlement amount either solely in cash, solely in common shares or in a combination of cash and shares of the Company's common stock.

The fair value of the exchangeable senior notes, which was calculated using a binomial lattice model at the time of assumption, was $112.3 million, representing the $115.0 million face value less a discount of $2.7 million, which is being amortized using the effective interest method over the term of the notes. The amount recorded to exchangeable senior notes, net at the time of assumption was $105.3 million, which represents the fair value of $112.3 million, less the fair value of the exchange settlement feature of the notes of $7.0 million, which was calculated using a straight-debt rate of 6.7% at the time of assumption. The fair value of the exchange settlement feature is being amortized using the effective interest method over the term of the notes.

As of December 31, 2017, the exchangeable senior notes had a balance of $111.7 million in the consolidated balance sheets, which was net of an unamortized discount of $0.9 million and $2.4 million of unamortized fair value of the exchange settlement feature, which was included in additional paid-in capital within the Company's consolidated balance sheets and was included in general partner's common capital within the Operating Partnership's consolidated balance sheets.

Secured Note Payable

In December 2014, as part of the Company's bulk portfolio acquisition of 914 homes, (the "Ellington Portfolio Acquisition"), the Company assumed a $51.6 million secured note payable, which is secured by a first priority mortgage on 583 of the acquired homes, bears interest at 4.06%, matures on July 1, 2019, and contains certain required covenants, including a minimum debt service coverage ratio of 1.47 to 1.00. As of December 31, 2017 and 2016, the secured note payable had a balance of $48.9 million and $49.8 million, respectively, in the consolidated balance sheets.

Credit Facilities

During 2016, the Company entered into a $1.0 billion credit agreement, which was subsequently amended in June 2017. The amendment expanded our borrowing capacity on the revolving credit facility to $800.0 million and reduced the term loan facility to $200.0 million. The amendment also lowered our cost of borrowing and provides a more flexible borrowing structure. The interest rate on the revolving credit facility is, at the Company’s election, a LIBOR rate plus a margin ranging from 0.825% to 1.55% or a base rate (generally determined according to a prime rate or federal funds rate) plus a margin ranging from 0.00% to 0.55%. Borrowings under the term loan facility accrue interest, at the Company’s election, at either a LIBOR rate plus a margin ranging from 0.90% to 1.75% or a base rate plus a margin ranging from 0.00% to 0.75%. In each case, the actual margin is determined based on the Company's credit ratings in effect from time to time. Based on current corporate ratings for LIBOR-based borrowings as of December 31, 2017, the revolving credit facility bears interest at 1-month LIBOR plus 1.20%, and the term loan facility bears interest at 1-month LIBOR plus 1.35%. The credit agreement includes an accordion feature allowing the revolving credit facility or the term loan facility to be increased to an aggregate amount not to exceed $1.75 billion, subject to certain conditions. The revolving credit facility matures on June 30, 2021, with two six-month extension options at the Company's election upon payment of an extension fee, and the term loan facility matures on June 30, 2022. No amortization payments are required on the term loan facility prior to the maturity date. The credit agreement requires that we maintain certain financial covenants. As of December 31, 2017, the Company had $140.0 million of outstanding borrowings against the revolving credit facility, $200.0 million of outstanding borrowings against the term loan facility and was in compliance with all loan covenants.

Interest Expense

The following table displays our total gross interest, which includes unused commitment and other fees on our credit facilities and amortization of deferred financing costs, the discounts on the ARP 2014-SFR1 securitization and exchangeable senior notes and the fair value of the exchange settlement feature of the exchangeable senior notes, and capitalized interest for the years ended December 31, 2017, 2016 and 2015 (in thousands):



	For the Years Ended December 31,
	2017			2016			2015
Gross interest cost	$	118,276		$	133,137		$	98,103
Capitalized interest	(5,656		)	(2,290		)	(8,690		)
Interest expense	$	112,620		$	130,847		$	89,413