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Fair Value (Notes)
9 Months Ended
Sep. 30, 2021
Fair Value Disclosures [Abstract]  
Fair Value Fair Value
We follow a three-tier fair value hierarchy, which classifies the inputs used in measuring fair values, in determining the fair value of our non-financial assets and non-financial liabilities, which consist primarily of goodwill. These tiers include: Level 1, defined as observable inputs such as quoted prices for identical instruments in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.
Our financial instruments include cash and cash equivalents, receivables, payables, borrowings against our ABL Credit Facility and Term Loan Facility, and outstanding Notes. The carrying amount of cash and cash equivalents, receivables and payables approximates fair value at September 30, 2021 and December 31, 2020, because of the short maturities of these instruments. In addition, the interest rates on our Term Loan Facility and ABL Credit Facility are variable and, therefore, we believe the carrying value of outstanding borrowings approximates their fair value.
The fair value of our Notes is based on Level 1 inputs and was as follows at September 30, 2021:
September 30, 2021
(in thousands)Carrying ValueFair ValueDifference
Senior notes$450,000 $485,415 $35,415