The following is a summary of debt (dollar amounts in thousands):


	As of December 31, 2022			As of December 31, 2021
Revolving credit facility(A)	$	929,584		$	730,000
Interim credit facility		—			869,606
Term loan		200,000			200,000
British pound sterling term loan due 2024(B)		126,690			—
British pound sterling term loan due 2025(B)		845,810			947,240
Australian term loan facility(B)		817,560			871,560
2.550% Senior Unsecured Notes due 2023(B)		483,320			541,280
3.325% Senior Unsecured Notes due 2025(B)		535,250			568,500
0.993% Senior Unsecured Notes due 2026(B)		535,250			568,500
2.500% Senior Unsecured Notes due 2026(B)		604,150			676,600
5.250% Senior Unsecured Notes due 2026		500,000			500,000
5.000% Senior Unsecured Notes due 2027		1,400,000			1,400,000
3.692% Senior Unsecured Notes due 2028(B)		724,980			811,920
4.625% Senior Unsecured Notes due 2029		900,000			900,000
3.375% Senior Unsecured Notes due 2030(B)		422,905			473,620
3.500% Senior Unsecured Notes due 2031		1,300,000			1,300,000
	$	10,325,499		$	11,358,826
Debt issue costs and discount, net		(57,087	)		(76,056	)
	$	10,268,412		$	11,282,770

(a)

Includes £90 million of GBP-denominated borrowings and €253 million of Euro-denominated borrowings that reflect the exchange rate at December 31, 2022.

(b)

Non-U.S. dollar denominated debt that reflects the exchange rate at period-end.

As of December 31, 2022, principal payments due on our debt (which exclude the effects of any discounts, premiums, or debt issue costs recorded) are as follows (amounts in thousands):


2023	$	483,320
2024		944,250
2025		1,381,060
2026		2,568,984
2027		1,600,000
Thereafter		3,347,885
Total	$	10,325,499

On May 6, 2022, we increased the amount of our unsecured credit facility ("Credit Facility") by $500 million by exercising the accordion feature. In addition, our revolver and U.S. dollar term loan were modified with Secured Overnight Financing Rate as a replacement reference rate to U.S. dollar LIBOR. Currently, our Credit Facility includes a $1.8 billion unsecured revolving loan facility and a $200 million unsecured term loan facility.

On June 29, 2022, we amended our Credit Facility. The amendment extended the maturity date of our revolving facility to June 30, 2026 with our option to extend for an additional 12 months. The maturity date of our $200 million unsecured term loan facility was extended to June 30, 2027. Additionally, we may request incremental term loan and/or revolving loan commitments in an aggregate amount not to exceed $1 billion.

In addition, the amendment improved interest rate spreads for both facilities. Under the amended Credit Facility and at our election, loans may be made as either ABR Loans or Term Benchmark Loans. The applicable margin for term loans that are ABR Loans is adjustable on a sliding scale from 0.00% to 0.70% based on current credit rating. The applicable margin for term loans that are Term Benchmark Loans is adjustable on a sliding scale from 0.875% to 1.70% based on current credit rating. The applicable margin for revolving loans that are ABR Loans is adjustable on a sliding scale from 0.00% to 0.50% based on current credit rating.

The applicable margin for revolving loans that are Term Benchmark Loans or RFR Loans, as defined in the Credit Facility agreement, is adjustable on a sliding scale from 0.80% to 1.50% based on current credit rating. The facility fee is adjustable on a sliding scale from 0.125% to 0.30% (currently 0.25%) based on current credit rating and is payable on the revolving loan facility.

At December 31, 2022, we had $929.6 million outstanding on the revolving credit facility, whereas, we had $730.0 million outstanding on our revolving credit facility at December 31, 2021. At December 31, 2022 and 2021, our availability under our revolving credit facility was $0.9 billion and $0.6 billion, respectively. The weighted-average interest rate on the revolving facility was 3.8% and 1.3% during 2022 and 2021, respectively.

At December 31, 2022 and 2021, the interest rate in effect on our term loan was 5.70% and 1.56%, respectively.

On January 15, 2021, we entered into a $900 million interim credit facility (“January 2021 Interim Credit Facility”), of which we borrowed £500 million to partially fund the Priory Group Transaction. We paid off and terminated this facility on March 26, 2021 with proceeds from the issuance of the 2.500% Senior Unsecured Notes due 2026 and the 3.375% Senior Unsecured Notes due 2030.

On July 27, 2021, we entered into a $1 billion interim credit facility with Barclays Bank PLC as administrative agent ("July 2021 Interim Credit Facility"), and several lenders from time-to-time are parties thereto. We used this facility to partially fund the acquisition of five South Florida facilities in August 2021 and the Springstone investments in October 2021. At December 31, 2021, the outstanding balance under this facility was $869.6 million.

On March 15, 2022, we paid off and terminated the July 2021 Interim Credit Facility with proceeds from the Macquarie Transaction as more fully described in Note 3 to the consolidated financial statements.

On December 9, 2022, we entered into a £105 million unsecured sterling-denominated term loan, of which we used to partially fund the Priory acquisition on the same date. This term loan matures on December 9, 2024, and has a fixed interest rate of 5.250%.

On January 6, 2020, we entered into a £700 million unsecured sterling-denominated term loan with Bank of America, N.A., as administrative agent, and several lenders from time-to-time are parties thereto. The term loan matures on January 15, 2025. The applicable margin under the term loan is adjustable based on a pricing grid from 0.85% to 1.65% dependent on our current credit rating. On March 4, 2020, we entered into an interest rate swap transaction (effective March 6, 2020) to fix the interest rate to approximately 0.70% for the duration of the loan. The current applicable margin for the pricing grid (which can vary based on our credit rating) is 1.25% for an all-in fixed rate of 1.95%.

On May 23, 2019, we entered into an A$1.2 billion term loan with Bank of America, N.A., as administrative agent, and several lenders from time-to-time are parties thereto. The term loan matures on May 23, 2024. The interest rate under the term loan is adjustable based on a pricing grid from 0.85% to 1.65%, dependent on our current senior unsecured credit rating. On June 27, 2019, we entered into an interest rate swap transaction (effective July 3, 2019) to fix the interest rate to approximately 1.20% for the duration of the loan as long as the reference rate stays above 0.00%. The current applicable margin for the pricing grid (which can vary based on our credit rating) is 1.25% for an all-in fixed rate of 2.45%.

At December 31, 2022, we had a derivative asset of approximately $93.2 million related to the combination of the sterling-denominated term loan interest rate swap and the Australian dollar term loan interest rate swap. At December 31, 2021, we had a derivative asset of approximately $12.4 million related to the sterling-denominated term loan interest rate swap and a derivative liability of approximately $4.2 million related to the Australian dollar term loan interest rate swap. Derivative assets are included in

“Other assets” while, the derivative liabilities are included in "Accounts payable and accrued expenses" on our consolidated balance sheets.

The following are the basic terms of our senior unsecured notes at December 31, 2022 (par value amounts in thousands):


	Offering Completion Date	Maturity Date	Par Value		% of Par Value			Interest Payment Frequency
2.550% Senior Unsecured Notes due 2023	December 5, 2019	December 5, 2023	£	400,000		100.000	%	Annually
3.325% Senior Unsecured Notes due 2025	March 24, 2017	March 24, 2025	€	500,000		100.000	%	Annually
0.993% Senior Unsecured Notes due 2026	October 6, 2021	October 15, 2026	€	500,000		100.000	%	Annually
2.500% Senior Unsecured Notes due 2026	March 24, 2021	March 24, 2026	£	500,000		99.937	%	Annually
5.250% Senior Unsecured Notes due 2026	July 22, 2016	August 1, 2026	$	500,000		100.000	%	Semi-annually
5.000% Senior Unsecured Notes due 2027	September 7, 2017	October 15, 2027	$	1,400,000		100.000	%	Semi-annually
3.692% Senior Unsecured Notes due 2028	December 5, 2019	June 5, 2028	£	600,000		99.998	%	Annually
4.625% Senior Unsecured Notes due 2029	July 26, 2019	August 1, 2029	$	900,000		99.500	%	Semi-annually
3.375% Senior Unsecured Notes due 2030	March 24, 2021	April 24, 2030	£	350,000		99.448	%	Annually
3.500% Senior Unsecured Notes due 2031	December 4, 2020	March 15, 2031	$	1,300,000		100.000	%	Semi-annually

We may repurchase, redeem, or refinance senior unsecured notes from time-to-time. We may purchase senior notes for cash through open market purchases, privately negotiated transactions, or a tender offer. In some cases, we may redeem some or all of the notes at any time, but may require a redemption premium that will decrease over time. In the event of a change of control, each holder of the notes may require us to repurchase some or all of our notes at a repurchase price equal to 101% of the aggregate principal amount of the notes plus accrued and unpaid interest to the date of purchase. Redemptions and repurchases of debt, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions, and other factors.

In 2022, we incurred approximately $9.5 million of debt refinancing costs. These costs were incurred as a result of the payoff of our July 2021 Interim Credit Facility with proceeds from the Macquarie Transaction on March 14, 2022, along with the amendment of our Credit Facility on June 29, 2022.

With the termination of our January 2021 Interim Credit Facility and other debt activity, we incurred approximately $7.3 million of debt refinancing costs in 2021.

With proceeds from our 0.993% Senior Unsecured Notes due 2026 offering, on October 22, 2021, we redeemed all of our outstanding €500 million aggregate principal amount of 4.000% senior unsecured notes that were due in 2022, including accrued and unpaid interest. As a result of this redemption, we incurred a charge of approximately $20 million (including redemption premiums and accelerated amortization of deferred debt issuance costs).

With proceeds from our 3.500% Senior Unsecured Notes due 2031 offering in 2020, we redeemed all of our outstanding $500.0 million aggregate principal amount of 6.375% senior unsecured notes that were due in 2024 and $300.0 million aggregate principal amount of 5.500% senior unsecured notes that were due in 2024, including accrued and unpaid interest. As a result of these redemptions, we incurred a charge of approximately $28 million (including redemption premiums and accelerated amortization of deferred debt issuance costs).

Our debt facilities impose certain restrictions on us, including restrictions on our ability to: incur debts; create or incur liens; provide guarantees in respect of obligations of any other entity; make redemptions and repurchases of our capital stock; prepay, redeem, or repurchase debt; engage in mergers or consolidations; enter into affiliated transactions; dispose of real estate or other assets; and change our business. In addition, the credit agreements governing our Credit Facility limit the amount of dividends we can

pay as a percentage of normalized adjusted funds from operations (“NAFFO”), as defined in the agreements, on a rolling four quarter basis. At December 31, 2022, the dividend restriction was 95% of NAFFO. The indentures governing our senior unsecured notes also limit the amount of dividends we can pay based on the sum of 95% of NAFFO, proceeds of equity issuances, and certain other net cash proceeds. Finally, our senior unsecured notes require us to maintain total unencumbered assets (as defined in the related indenture) of not less than 150% of our unsecured indebtedness.

In addition to these restrictions, the Credit Facility contains customary financial and operating covenants, including covenants relating to our total leverage ratio, fixed charge coverage ratio, secured leverage ratio, consolidated adjusted net worth, unsecured leverage ratio, and unsecured interest coverage ratio. The Credit Facility also contains customary events of default, including among others, nonpayment of principal or interest, material inaccuracy of representations, and failure to comply with our covenants. If an event of default occurs and is continuing under the Credit Facility, the entire outstanding balance may become immediately due and payable. At December 31, 2022, we were in compliance with all such financial and operating covenants.