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Fair Value Measurements
6 Months Ended
May 31, 2022
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table details the fair value measurements within the fair value hierarchy of our financial assets and liabilities at May 31, 2022 (in thousands):
 
  Fair Value Measurements Using
 Total Fair ValueLevel 1Level 2Level 3
Assets
Money market funds$25,966 $25,966 $— $— 
U.S. treasury bonds750 — 750 — 
Corporate bonds300 — 300 — 
Interest rate swap1,778 — 1,778 — 
Liabilities
Foreign exchange derivatives$(1,214)$— $(1,214)$— 

The following table details the fair value measurements within the fair value hierarchy of our financial assets and liabilities at November 30, 2021 (in thousands):
 
  Fair Value Measurements Using
 Total Fair ValueLevel 1Level 2Level 3
Assets
Money market funds$25,035 $25,035 $— $— 
U.S. treasury bonds757 — 757 — 
Corporate bonds1,210 — 1,210 — 
Liabilities
Foreign exchange derivatives(372)— (372)— 
Interest rate swap$(3,078)$— $(3,078)$— 

When developing fair value estimates, we maximize the use of observable inputs and minimize the use of unobservable inputs. When available, we use quoted market prices to measure fair value. The valuation technique used to measure fair value for our Level 1 and Level 2 assets is a market approach, using prices and other relevant information generated by market transactions involving identical or comparable assets. If market prices are not available, the fair value measurement is based on models that use primarily market-based parameters including yield curves, volatilities, credit ratings and currency rates. In certain cases where market rate assumptions are not available, we are required to make judgments about assumptions market participants would use to estimate the fair value of a financial instrument.
Fair Value of the Convertible Senior Notes

The Notes’ fair value, inclusive of the conversion feature embedded in the Notes, was $367.7 million as of May 31, 2022. The fair value was determined based on the Notes’ quoted price in an over-the-counter market on the last trading day of the reporting period and classified within Level 1 in the fair value hierarchy. See Note 8: Debt for additional information.