Level 1 – Quoted prices for identical instruments in active markets.
Level 2 – Observable inputs other than prices included in Level 1, such as quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs or significant value-drivers are observable in active markets.
Level 3 –Model-derived valuations in which one or more significant inputs or significant value-drivers are unobservable.
When available, Adtalem uses quoted market prices to determine fair value, and such measurements are classified within Level 1. In cases where market prices are not available, Adtalem makes use of observable market-based inputs to calculate fair value, in which case the measurements are classified within Level 2. If quoted or observable market prices are not available, fair value is based upon internally developed models that use, where possible, current market-based parameters such as interest rates and yield curves. These measurements are classified within Level 3.
Fair value measurements are classified according to the lowest level input or value-driver that is significant to the valuation. A measurement may therefore be classified within Level 3 even though there may be significant inputs that are readily observable.
The carrying value of our cash and cash equivalents approximates fair value because of their short-term nature and is classified as Level 1.
Adtalem maintains a rabbi trust to fund obligations under a non-qualified deferred compensation plan. The rabbi trust investments in stock and bond mutual funds, which are carried at fair value, are classified as marketable securities on the Consolidated Balance Sheets. All investments in marketable securities are recorded at fair value based upon quoted market prices using Level 1 inputs.
The fair value of the credit extension programs, which approximates its carrying value, included in accounts receivable, net and other assets, net on the Consolidated Balance Sheets as of March 31, 2021, June 30, 2020, and March 31, 2020 of $29.4 million, $34.3 million, and $35.6 million, respectively, is estimated by discounting the future cash flows using current rates for similar arrangements and is classified as Level 2. See Note 8 “Accounts Receivable and Credit Losses” for additional information on these credit extension programs.
In connection with the sale of DeVry University, Adtalem loaned $10.0 million to DeVry University under the terms of the Note. The Note bears interest at a rate of 4% per annum, payable annually in arrears, and has a maturity date of January 1, 2022. The fair value of the DeVry University loan receivable approximates its carrying value of $10.0 million for each reporting date. The carrying value is included on the Consolidated Balance Sheet in prepaid expenses and other current assets as of March 31, 2021 and in other assets, net as of each of June 30, 2020 and March 31, 2020. Fair value is estimated by discounting the future cash flows using an average of current rates for similar arrangements, which is estimated at 4% per annum and is classified as Level 2.
On July 31, 2019, Adtalem sold its Chicago, Illinois, campus facility to DePaul College Prep. In connection with the sale, Adtalem holds a mortgage from DePaul College Prep for $46.8 million. The mortgage is due on July 31, 2024 as a balloon payment and bears interest at a rate of 4% per annum, payable monthly. The carrying value of the DePaul College Prep loan receivable, which approximates its fair value, included in other assets, net on the Consolidated Balance Sheet as of March 31, 2021, June 30, 2020, and March 31, 2020 is $42.4 million, $41.4 million, and $41.1 million, respectively. Fair value is estimated by discounting the future cash flows using an average of current rates for similar arrangements, which is estimated at 7% per annum and is classified as Level 2.
As of March 31, 2021, June 30, 2020, and March 31, 2020, borrowings under our long-term debt agreements were $1,091.8 million, $294.0 million, and $454.8 million, respectively. The carrying value of our long-term debt approximates fair value because the interest rates on these borrowings approximated the effective interest rate and is classified as Level 2. See Note 12 “Debt” for additional information on our long-term debt agreements.
On March 24, 2020, we executed a pay-fixed, receive-variable interest rate swap agreement with a multinational financial institution to fully mitigate risks associated with the variable interest rate on our Term B Loan debt with an