Debt | Debt The Company’s mortgage loans are collateralized by first-mortgage liens on certain of the Company’s properties. The mortgage loans are non-recourse except for instances of fraud or misapplication of funds. Mortgage and senior unsecured revolving credit facility debt consisted of the following (dollars in thousands): Collateral Interest Rate Maturity Date 3/31/19 Property Carrying Value Balance Outstanding on Loan as of March 31, 2019 December 31, Senior Unsecured Revolving Credit Facility (1) 4.56 % March 8, 2022 $ — $ 97,000 $ 81,500 Residence Inn by Marriott New Rochelle, NY 5.75 % September 1, 2021 18,186 13,254 13,361 Residence Inn by Marriott San Diego, CA 4.66 % February 6, 2023 45,699 27,730 27,885 Homewood Suites by Hilton San Antonio, TX 4.59 % February 6, 2023 30,799 15,827 15,916 Residence Inn by Marriott Vienna, VA 4.49 % February 6, 2023 32,185 21,658 21,782 Courtyard by Marriott Houston, TX 4.19 % May 6, 2023 31,821 17,871 17,976 Hyatt Place Pittsburgh, PA 4.65 % July 6, 2023 35,583 21,870 21,989 Residence Inn by Marriott Bellevue, WA 4.97 % December 6, 2023 65,413 44,470 44,680 Residence Inn by Marriott Garden Grove, CA 4.79 % April 6, 2024 37,190 32,475 32,620 Residence Inn by Marriott Silicon Valley I, CA 4.64 % July 1, 2024 81,477 64,800 64,800 Residence Inn by Marriott Silicon Valley II, CA 4.64 % July 1, 2024 81,663 70,700 70,700 Residence Inn by Marriott San Mateo, CA 4.64 % July 1, 2024 62,871 48,600 48,600 Residence Inn by Marriott Mountain View, CA 4.64 % July 6, 2024 54,882 37,900 37,900 SpringHill Suites by Marriott Savannah, GA 4.62 % July 6, 2024 35,527 30,000 30,000 Hilton Garden Inn Marina del Rey, CA 4.68 % July 6, 2024 40,193 21,248 21,355 Homewood Suites by Hilton Billerica, MA 4.32 % December 6, 2024 14,646 15,896 15,965 Hampton Inn & Suites Houston Medical Center, TX 4.25 % January 6, 2025 15,256 17,948 18,026 Total debt before unamortized debt issue costs $ 683,391 $ 599,247 $ 585,055 Unamortized mortgage debt issue costs (1,679) (1,773) Total debt outstanding $ 597,568 $ 583,282 (1) The interest rate for the senior unsecured revolving credit facility is variable and based on either LIBOR plus an applicable margin ranging from 1.55% to 2.3%, or prime plus an applicable margin of 0.55% to 1.3%. At March 31, 2019 and December 31, 2018, the Company had $97.0 million and $81.5 million, respectively, of outstanding borrowings under its senior unsecured revolving credit facility. At March 31, 2019, the maximum borrowing availability under the senior unsecured revolving credit facility was $250.0 million. The Company estimates the fair value of its fixed rate debt by discounting the future cash flows of each instrument at estimated market rates. All of the Company's mortgage loans are fixed-rate. Rates take into consideration general market conditions, quality and estimated value of collateral and maturity of debt with similar credit terms and are classified within level 3 of the fair value hierarchy. The estimated fair value of the Company’s fixed rate debt as of March 31, 2019 and December 31, 2018 was $503.6 million and $489.0 million, respectively. The Company estimates the fair value of its variable rate debt by taking into account general market conditions and the estimated credit terms it could obtain for debt with similar maturity and is classified within level 3 of the fair value hierarchy. As of March 31, 2019, the Company’s only variable rate debt is under its senior unsecured revolving credit facility. The estimated fair value of the Company’s variable rate debt as of March 31, 2019 and December 31, 2018 was $97.0 million and $81.5 million, respectively. As of March 31, 2019, the Company was in compliance with all of its financial covenants. At March 31, 2019, the Company’s consolidated fixed charge coverage ratio was 3.3 and the credit facility covenant is 1.5. Future scheduled principal payments of debt obligations as of March 31, 2019, for the current year and each of the next four calendar years and thereafter are as follows (in thousands): Amount 2019 (remaining nine months) $ 5,684 2020 9,536 2021 21,962 2022 106,954 2023 142,545 2024 296,658 Thereafter 15,908 Total debt before unamortized debt issue costs $ 599,247 Unamortized mortgage debt issue costs (1,679) Total debt outstanding $ 597,568 |