Debt | Debt Debt consisted of the following as of March 31, 2019 and December 31, 2018 , respectively (in thousands): March 31, 2019 December 31, 2018 Unsecured revolving credit facility $ — $ — Unsecured term loans 500,000 500,000 Unsecured senior notes 1,850,000 1,850,000 Fixed rate mortgages 210,834 211,421 2,560,834 2,561,421 Deferred financing costs, net (13,048 ) (13,741 ) Discount, net (6,167 ) (6,448 ) Total $ 2,541,619 $ 2,541,232 Unsecured Credit Agreement Unsecured Revolving Credit Facility due 2022 In 2017, HTALP entered into an amended and restated $1.3 billion unsecured credit agreement (the “Unsecured Credit Agreement”) which increased the amount available under the unsecured revolving credit facility to $1.0 billion and extended the maturities of the unsecured revolving credit facility to June 30, 2022 and for the $300.0 million unsecured term loan referenced below until February 1, 2023 . The maximum principal amount of the Unsecured Credit Agreement may be increased by up to $750.0 million , subject to certain conditions, for a total principal amount of $2.05 billion . Borrowings under the unsecured revolving credit facility accrue interest at a rate equal to adjusted LIBOR , plus a margin ranging from 0.83% to 1.55% per annum based on our credit rating. We also pay a facility fee ranging from 0.13% to 0.30% per annum on the aggregate commitments under the unsecured revolving credit facility. As of March 31, 2019 , the margin associated with our borrowings was 1.00% per annum and the facility fee was 0.20% per annum. Unsecured Term Loan due 2023 In 2017, we entered into the Unsecured Credit Agreement as noted above. As part of this agreement, we obtained a $300.0 million unsecured term loan that was guaranteed by HTA with a maturity date of February 1, 2023 . Borrowings under this unsecured term loan accrue interest equal to adjusted LIBOR , plus a margin ranging from 0.90% to 1.75% per annum based on our credit rating. The margin associated with our borrowings as of March 31, 2019 was 1.10% per annum. Including the impact of the interest rate swaps associated with our unsecured term loan, the interest rate was 3.65% per annum, based on our current credit rating. As of March 31, 2019 , HTALP had $300.0 million under this unsecured term loan outstanding. $200.0 Million Unsecured Term Loan due 2024 On August 1, 2018, HTALP entered into a modification of our $200.0 million unsecured term loan previously due in 2023. The modification decreased pricing at our current credit rating by 65 basis points and extended the maturity date to January 15, 2024. The other material terms of the unsecured term loan prior to the modification remained substantially unchanged. Borrowings under the unsecured term loan accrue interest at a rate equal to LIBOR, plus a margin ranging from 0.75% to 1.65% per annum based on our credit rating. The margin associated with our borrowings as of March 31, 2019 was 1.00% per annum. HTALP had interest rate swaps on a portion of the balance, which resulted in a fixed interest rate at 2.77% per annum. As of March 31, 2019 , HTALP had $200.0 million under this unsecured term loan outstanding. $300.0 Million Unsecured Senior Notes due 2021 As of March 31, 2019 , HTALP had $300.0 million of unsecured senior notes outstanding that are guaranteed by HTA. These unsecured senior notes are registered under the Securities Act of 1933, as amended (the “Securities Act”), bear interest at 3.38% per annum and are payable semi-annually. Additionally, these unsecured senior notes were offered at 99.21% of the principal amount thereof, with an effective yield to maturity of 3.50% per annum. As of March 31, 2019 , HTALP had $300.0 million of these unsecured senior notes outstanding that mature on July 15, 2021. $400.0 Million Unsecured Senior Notes due 2022 In 2017, in connection with the $500.0 million unsecured senior notes due 2027 referenced below, HTALP issued $400.0 million of unsecured senior notes that are guaranteed by HTA. These unsecured senior notes are registered under the Securities Act, bear interest at 2.95% per annum and are payable semi-annually. Additionally, these unsecured senior notes were offered at 99.94% of the principal amount thereof, with an effective yield to maturity of 2.96% per annum. As of March 31, 2019 , HTALP had $400.0 million of these unsecured senior notes outstanding that mature on July 1, 2022. $300.0 Million Unsecured Senior Notes due 2023 As of March 31, 2019 , HTALP had $300.0 million of unsecured senior notes outstanding that are guaranteed by HTA. These unsecured senior notes are registered under the Securities Act, bear interest at 3.70% per annum and are payable semi-annually. Additionally, these unsecured senior notes were offered at 99.19% of the principal amount thereof, with an effective yield to maturity of 3.80% per annum. As of March 31, 2019 , HTALP had $300.0 million of these unsecured senior notes outstanding that mature on April 15, 2023. $350.0 Million Unsecured Senior Notes due 2026 As of March 31, 2019 , HTALP had $350.0 million of unsecured senior notes outstanding that are guaranteed by HTA. These unsecured senior notes are registered under the Securities Act, bear interest at 3.50% per annum and are payable semi-annually. Additionally, these unsecured senior notes were offered at 99.72% of the principal amount thereof, with an effective yield to maturity of 3.53% per annum. As of March 31, 2019 , HTALP had $350.0 million of these unsecured senior notes outstanding that mature on August 1, 2026. $500.0 Million Unsecured Senior Notes due 2027 In 2017, in connection with the $400.0 million unsecured senior notes due 2022 referenced above, HTALP issued $500.0 million of unsecured senior notes that are guaranteed by HTA. These unsecured senior notes are registered under the Securities Act, bear interest at 3.75% per annum and are payable semi-annually. Additionally, these unsecured senior notes were offered at 99.49% of the principal amount thereof, with an effective yield to maturity of 3.81% per annum. As of March 31, 2019 , HTALP had $500.0 million of these unsecured senior notes outstanding that mature on July 1, 2027. Fixed Rate Mortgages As of March 31, 2019 , HTALP and its subsidiaries had fixed rate mortgages with interest rates ranging from 2.85% to 4.00% per annum and a weighted average interest rate of 3.96% per annum. Future Debt Maturities The following table summarizes the debt maturities and scheduled principal repayments of our indebtedness as of March 31, 2019 (in thousands): Year Amount 2019 $ 96,776 2020 97,429 2021 302,504 2022 402,005 2023 612,120 Thereafter 1,050,000 Total $ 2,560,834 Deferred Financing Costs As of March 31, 2019 , the future amortization of our deferred financing costs is as follows (in thousands): Year Amount 2019 $ 2,399 2020 2,890 2021 2,717 2022 2,096 2023 1,040 Thereafter 1,906 Total $ 13,048 Debt Covenants We are required by the terms of our applicable loan agreements to meet various affirmative and negative covenants that we believe are customary for these types of facilities, such as limitations on the incurrence of debt by us and our subsidiaries that own unencumbered assets, limitations on the nature of HTALP ’s business, and limitations on distributions by HTALP and its subsidiaries that own unencumbered assets. Our loan agreements also impose various financial covenants on us, such as a maximum ratio of total indebtedness to total asset value, a minimum ratio of EBITDA to fixed charges, a minimum tangible net worth covenant, a maximum ratio of unsecured indebtedness to unencumbered asset value, rent coverage ratios and a minimum ratio of unencumbered Net Operating Income (“NOI”) to unsecured interest expense. As of March 31, 2019 |