Item 3. Quantitative and Qualitative Disclosures About Market Risk
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We are exposed to market risks in the ordinary course of our business that include changes in interest rates and changes in foreign currency exchange rates. Information relating to quantitative and qualitative disclosures about these market risks is set forth below.
Interest rate risk
Our cash consists primarily of an interest-bearing account at a large United States bank with limited interest rate risk. At March 31, 2025, we held no investments in marketable securities.
We incur interest at variable rates under our Revolving Credit Facility. At March 31, 2025, there were no outstanding borrowings under the Revolving Credit Facility and $30.8 million of outstanding letters of credit, resulting in total revolver availability of $619.2 million, which was available at intervals ranging from 30 to 180 days at interest rates of SOFR plus 2.25% or base rate plus 1.25% (subject to one ratings-based step down of 0.25%) .
Until April 8, 2025, our Term Loan Facility bore interest at a rate per annum of SOFR plus an applicable margin of 2.50% and had an outstanding balance of $997.5 million at March 31, 2025. Effective April 8, 2025, we entered into an interest rate swap agreement for our entire Term Loan Facility notional amount of $997.5 million , which converted the variable interest rate of our Term Loan Facility to a fixed interest rate of 3.409%, plus the applicable margin of 2.50% (subject to one ratings-based step down of 0.25%).
Assuming no prepayments of the Term Loan Facility and that the Revolving Credit Facility is fully drawn, each one percentage point change in interest rates would result in an approximately $16.5 million change in annual interest expense on the indebtedness under the Credit Facilities as of March 31, 2025.
Foreign currency exchange risk
We operate primarily in the United States with three centers operating in Canada. Given our limited operations outside of the United States, fluctuations due to changes in foreign currency exchange rates would not have a material impact on our business.
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