request or 90 days. The term loan had an interest rate margin of 9.91% with an option, which we elected, to pay in kind (“PIK”) interest up to 3.60% of the per annum interest due and payable on the term loans. The PIK interest is capitalized and added to the principal balance of the obligations on such date. There are no required amortization payments, and the Senior Facility matures on June 28, 2026, as amended. As the entire outstanding term loan balance is long-term, the balance is shown as long-term debt in the accompanying consolidated balance sheets.
On May 31, 2019, we entered into Amendment No. 1 to the Senior Facility (the “Amended Senior Facility”) to change the PIK option from 3.6% to 2.6% and increase the maximum allowable maintenance capital expenditure.
On April 2, 2020, we entered into Amendment No. 2 to the Amended Senior Facility, which permitted us to PIK the entire April 1, 2020 interest payment. It also waived certain financial covenants for the same period.
On June 9, 2020, we entered into Amendment No. 3 to the Amended Senior Facility, which permitted us to PIK the entire interest payment each quarter through January 1, 2021. It also waived certain financial covenants through September 2022. In exchange, our interest rate margin was increased.
On May 18, 2021, we entered into Amendment No. 4 to the Amended Senior Facility to revise the limits on our maximum allowable maintenance capital expenditure.
On February 9, 2023, we entered into Amendment No. 5 to the Amended Senior Facility to revise the limits on our maximum allowable maintenance capital expenditure. It also changed the benchmark rate from LIBOR to SOFR.
On June 21, 2023, we entered into Amendment No. 6 to the Amended Senior Facility to extend the maturity of the Senior Facility to June 28, 2026.
We have incurred $11.0 million in deferred financing costs related to the issuance of these facilities. Deferred financing costs, net of accumulated amortization, of $0.5 million and $2.3 million are included as a reduction to long-term debt in the accompanying consolidated balance sheets as of March 31, 2024, and March 26, 2023, respectively. Amortization of $1.9 million for each of fiscal years 2024 and 2023 is included in interest expense in the accompanying consolidated statements of comprehensive income.
At March 31, 2024, we did not have an outstanding balance under the revolving loan facility. We had $215 million outstanding under the term loan, with $33.5 million of the balance attributed to our PIK interest election. Our PIK interest rate at March 31, 2024 was 2.60%. Our borrowing capacity under the revolving loan facility is reduced on a dollar-for-dollar basis by the cumulative amount of any outstanding letters of credit, which totaled $4.5 million at March 31, 2024, resulting in $15.5 million available borrowing capacity. As of March 31, 2024, and March 26, 2023, we were in compliance with the financial and nonfinancial covenants of the Amended Senior Facility.
In May 2024, the debt was paid off in conjunction with the transaction (Note 16).
Interest Expense—Interest expense for fiscal years 2024 and 2023 consisted of the following (in thousands):
| | | | | | |
| | March 31, 2024 | | March 26, 2023 |
Senior Facility term loan | | $ | 33,553 | | $ | 27,172 |
Amortization of deferred financing costs | | | 1,891 | | | 1,854 |
Senior Facility revolving loan | | | 117 | | | 140 |
Letter of credit fees and other | | | 448 | | | 408 |
Interest income | | | (639) | | | (77) |
Interest expense, net | | $ | 35,370 | | $ | 29,497 |