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 June 30, 2023, we held no investments in marketable securities.
In connection with the refinancing of our Term Loan Facility in May 2023, we converted the facilities under the Amended Credit Agreement from LIBOR to Term Secured Overnight Financing Rate (“SOFR”). We incur interest at variable rates under our Revolving Credit Facility. At June 30, 2023, there were $20.0 million of outstanding borrowings under the Revolving Credit Facility and $30.5 million of outstanding letters of credit, resulting in total revolver availability of $424.5 million , which was available at intervals ranging from 30 to 180 days at interest rates of SOFR plus an applicable credit adjustment spread ranging fro m 0.11448% to 0.42826% d epending on the duration of borrowing plus 3.50% or base rate plus 2.50%. Our Term Loan Facility is also subject to variable rate s of SOFR plus the applicable credit adjustment spread plus 4.75% or base rate plus 3.75% and had an outstanding balance of $310.0 million at June 30, 2023 .
Assuming no prepayments of the Term Loan Facility and that the Revolving Credit Facility is fully drawn (and that SOFR is in excess of the floor rate applicable to the Term Loan Facility), each one percentage point change in interest rates would result in an approximately $7.9 million change in annual interest expense on the indebtedness under the Credit Facilities.
Foreign currency exchange risk
We operate primarily in the United States with three centers operating in Canada. Given our limited amount of 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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