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Fair Value Measurements
3 Months Ended
Feb. 28, 2021
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
Recurring Fair Value Measurements

The following table details the fair value measurements within the fair value hierarchy of our financial assets and liabilities at February 28, 2021 (in thousands):
 
  Fair Value Measurements Using
 Total Fair ValueLevel 1Level 2Level 3
Assets
Money market funds$20,295 $20,295 $— $— 
U.S. treasury bonds4,535 — 4,535 — 
Corporate bonds2,138 — 2,138 — 
Foreign exchange derivatives2,350 — 2,350 — 
Liabilities
Interest rate swap$(5,747)$— $(5,747)$— 

The following table details the fair value measurements within the fair value hierarchy of our financial assets and liabilities at November 30, 2020 (in thousands):
 
  Fair Value Measurements Using
 Total Fair ValueLevel 1Level 2Level 3
Assets
Money market funds$18,964 $18,964 $— $— 
U.S. treasury bonds5,051 — 5,051 — 
Corporate bonds2,954 — 2,954 — 
Foreign exchange derivatives1,442 — 1,442 — 
Liabilities
Interest rate swap$(6,855)$— $(6,855)$— 

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.

We did not have any nonrecurring fair value measurements as of February 28, 2021.