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Fair Value Measurements
12 Months Ended
Dec. 31, 2023
Fair Value Measurements [Abstract]  
Fair Value Measurements
18. Fair Value Measurements

We follow a three-level fair value hierarchy that prioritizes the inputs to measure fair value.  This hierarchy requires entities to maximize the use of “observable inputs” and minimize the use of “unobservable inputs.”  The three levels of inputs used to measure fair value are as follows:
Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets as of the measurement date.
Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.
Level 3: Significant unobservable inputs that reflect assumptions that market participants would use in pricing an asset or liability.

The following is a summary of the estimated fair values, carrying amounts, and classification under the fair value hierarchy of our financial instruments at December 31, 2023 and December 31, 2022 (in thousands):

      
December 31, 2023
   
December 31, 2022
 
 
Fair Value
Hierarchy
 
Fair Value
   
Carrying
Amount
   
Fair Value
   
Carrying
Amount
 
                           
Cash and cash equivalents (a)
LEVEL 1/2
 
$
32,526
   
$
32,526
   
$
21,150
   
$
21,150
 
Deferred compensation
LEVEL 1
   
23,893
     
23,893
     
20,190
     
20,190
 
Short term borrowings
LEVEL 1
   
5,029
     
5,029
     
55,031
     
55,031
 
Long-term debt
LEVEL 1
   
151,182
     
151,182
     
184,589
     
184,589
 
Cash flow interest rate swap
LEVEL 2
   
3,939
     
3,939
     
5,174
     
5,174
 
Long-term investments
LEVEL 2     7,468       7,468              

(a) As of December 31, 2023 cash and cash equivalents consist of cash of $29.5 million and cash equivalents of $3 million, which are classified as Level 1 and Level 2, respectively, under the fair value hierarchy.  Cash and cash equivalents at December 31, 2022 consists solely of cash of $21.2 million, which is classified as Level 1 under the fair value hierarchy.

Cash equivalents consist of certificates of deposit with original maturities of 3 months, or less. These securities are accounted for as held-to-maturity and recorded at amortized cost, which approximates their fair values at December 31, 2023.  The fair value of the underlying assets held by the deferred compensation plan are based on the quoted market prices of the underlying funds which are held by registered investment companies. The carrying value of our variable rate short-term borrowings and long-term debt under our credit facilities approximates fair value as the variable interest rates in the facilities reflect current market rates. The fair value of our cash flow interest rate swap agreement is obtained from an independent third party, is based upon market quotes, and represents the net amount required to terminate the interest rate swap, taking into consideration market rates and counterparty credit risk.  Long-term investments consist of certificates of deposit with original maturities in excess of twelve months. These securities are accounted for as held-to-maturity and recorded at amortized cost, which approximates their fair values at December 31, 2023.