The following table discloses certain information regarding the Company’s unsecured and secured indebtedness (in millions):

	Carrying Value at December 31,						Interest Rate^(A) at December 31,		Maturity Date at
	2020			2019			2020	2019	December 31, 2020
Unsecured indebtedness:
Senior notes^(B)	$	1,460.0		$	1,660.0		3.375%–4.700%	3.375%–4.700%	May 2023– June 2027
Senior notes – discount, net		(4.0	)		(3.8	)
Net unamortized debt issuance costs		(6.4	)		(8.2	)
Total Senior Notes	$	1,449.6		$	1,648.0

Term Loan	$	100.0		$	100.0		1.1%	2.8%	January 2023
Net unamortized debt issuance costs		(0.4	)		(0.5	)
Total Term Loan	$	99.6		$	99.5

Secured indebtedness:
Mortgage indebtedness – Fixed Rate	$	153.8		$	95.2		4.4%	5.7%	June 2021– May 2025
Mortgage indebtedness – Variable Rate		96.5			—		2.3%	N/A	January 2021
Net unamortized debt issuance costs		(1.0	)		(0.3	)
Total Mortgage Indebtedness	$	249.3		$	94.9

In 2020, the Company redeemed the entire $200.0 million outstanding aggregate principal amount of its 4.625% Senior Notes due 2022 (the “Senior Notes due 2022”). In connection with the redemption of the Senior Notes due 2022, the Company paid a make-whole amount of $16.6 million. This make-whole amount is included in Other (expense) income, net, in the Company’s consolidated statements of operations.

The Company’s various fixed-rate senior notes have interest coupon rates that averaged 4.1% and 4.2% per annum at December 31, 2020 and 2019, respectively. The senior notes may be redeemed prior to maturity based upon a yield maintenance calculation. The fixed-rate senior notes were issued pursuant to indentures that contain certain covenants, including limitations on incurrence of debt, maintenance of unencumbered real estate assets and debt service coverage. The covenants also require that the cumulative dividends declared or paid from December 31, 1993, through the end of the current period cannot exceed Funds From Operations (as defined in the agreement) plus an additional $20.0 million for the same period unless required to maintain REIT status. Interest is paid semiannually in arrears. At December 31, 2020 and 2019, the Company was in compliance with all of the financial covenants under the indentures.

The Company maintains a term loan with Wells Fargo Bank, National Association, as administrative agent, and PNC and KeyBank National Association, as syndication agents (the “Term Loan”). The Term Loan accrues interest at a variable rate based on LIBOR as defined in the loan agreement) or the Alternative Base Rate, as defined in the respective facility, plus a specified spread based on the Company’s long-term senior unsecured debt ratings (1.0% at December 31, 2020). The maturity date is January 2023. The Company may increase the amount of the facility provided that lenders agree to certain terms. The Company is required to comply with covenants similar to those contained in the Revolving Credit Facilities. The Company was in compliance with these financial covenants at December 31, 2020 and 2019.

Mortgages payable, collateralized by real estate with a net book value of $329.2 million at December 31, 2020, and related tenant leases, are generally due in monthly installments of principal and/or interest. Fixed contractual interest rates on mortgages payable range from approximately 3.6% to 5.5% per annum.

The scheduled principal payments of the Revolving Credit Facilities (Note 8) and unsecured and secured indebtedness, excluding extension options, as of December 31, 2020, are as follows (in thousands):

Total gross fees paid by the Company for the Revolving Credit Facilities and term loans in 2020, 2019 and 2018 aggregated $2.6 million, $2.5 million and $2.7 million, respectively.