Indebtedness

12 Months Ended

Dec. 31, 2020

The following table discloses certain information regarding our indebtedness:


	Outstanding Balance at				Interest Rate at December 31, 2020	Effective Interest Rate at Issuance	Maturity Date
	December 31, 2020		December 31, 2019
Mortgage Loans Payable, Gross	$	144,214	$	174,360	4.03% – 4.85%	4.03% – 4.85%	October 2021 – August 2028
Unamortized Debt Issuance Costs	(335)		(675)

Mortgage Loans Payable, Net	$	143,879	$	173,685
Senior Unsecured Notes, Gross
2027 Notes	6,070		6,070		7.15%	7.11%	5/15/2027
2028 Notes	31,901		31,901		7.60%	8.13%	7/15/2028
2032 Notes	10,600		10,600		7.75%	7.87%	4/15/2032
2027 Private Placement Notes	125,000		125,000		4.30%	4.30%	4/20/2027
2028 Private Placement Notes	150,000		150,000		3.86%	3.86%	2/15/2028
2029 Private Placement Notes	75,000		75,000		4.40%	4.40%	4/20/2029
2029 II Private Placement Notes	150,000		150,000		3.97%	4.23%	7/23/2029
2030 Private Placement Notes	150,000		150,000		3.96%	3.96%	2/15/2030
2030 II Private Placement Notes	100,000		—		2.74%	2.74%	9/17/2030
2032 Private Placement Notes	200,000		—		2.84%	2.84%	9/17/2032
Subtotal	$	998,571	$	698,571
Unamortized Debt Issuance Costs	(6,206)		(4,485)
Unamortized Discounts	(65)		(71)
Senior Unsecured Notes, Net	$	992,300	$	694,015
Unsecured Term Loans, Gross
2014 Unsecured Term Loan	$	—	$	200,000	N/A	N/A	N/A
2015 Unsecured Term Loan (A)	260,000		260,000		2.89%	N/A	9/12/2022
2020 Unsecured Term Loan (A)	200,000		—		3.79%	N/A	7/15/2021
Subtotal	$	460,000	$	460,000
Unamortized Debt Issuance Costs	(1,538)		(2,135)
Unsecured Term Loans, Net	$	458,462	$	457,865
Unsecured Credit Facility (B)	$	—	$	158,000	N/A	N/A	10/29/2021

(A) The interest rate at December 31, 2020 also reflects the derivative instruments we entered into to effectively convert the variable rate to a fixed rate. See Note 12.

(B) The maturity date may be extended an additional year at our election, subject to certain restrictions. Amounts exclude unamortized debt issuance costs of $1,049 and $2,300 as of December 31, 2020 and 2019, respectively, which are included in the line item Prepaid Expenses and Other Assets, Net.

Mortgage Loans Payable, Net

During the years ended December 31, 2020 and 2019, we paid off mortgage loans in the amount of $25,448 and $117,199, respectively. In connection with mortgage loans paid off during the years ended December 31, 2018, we recognized $39 within the line item Loss from Retirement of Debt representing the write-off of unamortized debt issuance costs offset by the write off of an unamortized premium.

During the year ended December 31, 2018, we assumed a mortgage loan in the amount of $11,654 in conjunction with the acquisition of three industrial properties, totaling approximately 0.2 million square feet of GLA. The mortgage loan bears interest at a fixed rate of 4.17%, principal payments are amortized over 30 years and the loan matures in August 2028.

As of December 31, 2020, mortgage loans payable are collateralized, and in some instances cross-collateralized, by industrial properties with a net carrying value of $226,182. We believe the Operating Partnership and the Company were in compliance with all covenants relating to mortgage loans as of December 31, 2020.

Senior Unsecured Notes, Net

During the year ended December 31, 2020, the Operating Partnership issued $100,000 of 2.74% Series F Guaranteed Senior Notes Due September 17, 2030 (the "2030 II Private Placement Notes") and $200,000 of 2.84% Series G Guaranteed Senior Notes due September 17, 2032 (the "2032 Private Placement Notes") in a private placement pursuant to a Note and Guaranty Agreement dated July 7, 2020.

During the year ended December 31, 2019, the Operating Partnership issued $150,000 of 3.97% Series E Guaranteed Senior Notes Due July 23, 2029 (the "2029 II Private Placement Notes") in a private placement pursuant to a Note and Guaranty Agreement dated May 16, 2019.

During the year ended December 31, 2018, the Operating Partnership issued $150,000 of 3.86% Series C Guaranteed Senior Notes due February 15, 2028 (the "2028 Private Placement Notes") and $150,000 of 3.96% Series D Guaranteed Senior Notes due February 15, 2030 (the "2030 Private Placement Notes") in a private placement pursuant to a Note and Guaranty Agreement dated December 12, 2017.

The 2028 Private Placement Notes, the 2029 Private Placement Notes, the 2029 II Private Placement Notes, the 2030 Private Placement Notes, the 2030 II Private Placement Notes and the 2032 Private Placement Notes (together with senior notes issued in a private placement in prior years, the "Private Placement Notes") are unsecured obligations of the Operating Partnership that are fully and unconditionally guaranteed by the Company and require semi-annual interest payments.

Unsecured Term Loans, Net

On September 11, 2015, we entered into a seven-year, $260,000 unsecured loan (the "2015 Unsecured Term Loan") with a syndicate of financial institutions. At December 31, 2020, the 2015 Unsecured Term Loan requires interest only payments and bears interest at a variable rate based on LIBOR plus 110 basis points. The interest rate on the 2015 Unsecured Term Loan varies based on the Company's leverage ratio or, at our election, the Company's credit ratings.

On July 15, 2020, we entered into a $200,000 unsecured term loan (the "2020 Unsecured Term Loan") which replaced a seven-year, $200,000 unsecured loan that was previously scheduled to mature in January 2021. The 2020 Unsecured Term Loan, together with the 2015 Unsecured Term Loan, the "Unsecured Term Loans"). The 2020 Unsecured Term Loan matures on July 15, 2021, however, we have two, one-year extension options at our election, subject to the satisfaction of certain conditions. We intend to refinance the 2020 Unsecured Term Loan prior to its maturity or exercise the one-year extension. The 2020 Unsecured Term Loan allows us to request incremental term loans in an aggregate amount equal to $100,000 and provides for interest-only payments initially at LIBOR plus 150 basis points. The interest rate on the 2020 Unsecured Term Loan is subject to adjustment based on our investment grade rating. As noted in Note 12, we entered into the 2021 Swaps to effectively convert the rate applicable under the 2020 Unsecured Term Loan to a fixed interest rate of approximately 2.49% per annum based on the current LIBOR spread beginning in February 2021.

Unsecured Credit Facility

As of December 31, 2020, we have a $725,000 revolving credit agreement (the "Unsecured Credit Facility"). We may request that the borrowing capacity under the Unsecured Credit Facility be increased to $1,000,000, subject to certain restrictions. The Unsecured Credit Facility matures on October 29, 2021, with an option to extend an additional one year at our election, subject to certain restrictions. We intend to refinance the Unsecured Credit Facility prior to its maturity or exercise the one-year extension. The interest rate on the Unsecured Credit Facility varies based on our leverage ratio. At December 31, 2020, the Unsecured Credit Facility provides for interest only payments at LIBOR plus 110 basis points.

Indebtedness

The following is a schedule of the stated maturities and scheduled principal payments of our indebtedness, exclusive of premiums, discounts and debt issuance costs, for the next five years as of December 31, and thereafter:


	Amount
2021	$	261,891
2022	332,024
2023	321
2024	335
2025	349
Thereafter	1,007,865
Total	$	1,602,785

The Unsecured Credit Facility, the Unsecured Term Loans, the Private Placement Notes and the indentures governing our senior unsecured notes contain certain financial covenants, including limitations on incurrence of debt and debt service coverage. Under the Unsecured Credit Facility and the Unsecured Term Loans, an event of default can occur if the lenders, in their good faith judgment, determine that a material adverse change has occurred which could prevent timely repayment or materially impair our ability to perform our obligations under the loan agreements. We believe that the Operating Partnership and the Company were in compliance with all covenants relating to the Unsecured Credit Facility, the Unsecured Term Loans, the Private Placement Notes and indentures governing our senior unsecured notes as of December 31, 2020. However, these financial covenants are complex and there can be no assurance that these provisions would not be interpreted by our lenders and noteholders in a manner that could impose and cause us to incur material costs.

Fair Value

At December 31, 2020 and 2019, the fair value of our indebtedness was as follows:


	December 31, 2020				December 31, 2019
	Carrying Amount (A)		Fair Value		Carrying Amount (A)		Fair Value
Mortgage Loans Payable, Net	$	144,214	$	148,770	$	174,360	$	179,287
Senior Unsecured Notes, Net	998,506		1,096,262		698,500		756,351
Unsecured Term Loans	460,000		458,207		460,000		460,902
Unsecured Credit Facility	—		—		158,000		158,141
Total	$	1,602,720	$	1,703,239	$	1,490,860	$	1,554,681

(A) The carrying amounts include unamortized premiums and/or discounts and exclude unamortized debt issuance costs.

The fair values of our mortgage loans payable were determined by discounting the future cash flows using the current rates at which similar loans would be made based upon similar remaining maturities. The current market rates we utilized were internally estimated. The fair value of the senior unsecured notes were determined by using rates, as advised by our bankers, that are based upon recent trades within the same series of the senior unsecured notes, recent trades for senior unsecured notes with comparable maturities, recent trades for fixed rate unsecured notes from companies with profiles similar to ours, as well as overall economic conditions. The fair value of the Unsecured Credit Facility and the Unsecured Term Loans was determined by discounting the future cash flows using rates, as advised by our bankers, at which similar loans would be made to borrowers with similar credit ratings and for the same remaining term, assuming no repayment until maturity. We have concluded that our determination of fair value for each of our mortgage loans payable, senior unsecured notes, the Unsecured Term Loans and the Unsecured Credit Facility was primarily based upon Level 3 inputs.