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FAIR VALUE MEASUREMENTS (Tables)
9 Months Ended
Sep. 30, 2021
Fair Value Disclosures [Abstract]  
Fair Value Measurements and Fair Value Hierarchy for Assets and Liabilities
Fair value measurements and the fair value hierarchy level for the Company’s assets and liabilities measured at fair value on a recurring basis, are shown below (in thousands):
FrequencyAsset / (Liability)Quoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
September 30, 2021
Commodity swap contractsRecurring21,914 — 21,914 — 
Mutual fundsRecurring7,608 7,608 — — 
Life-insurance contractsRecurring18,254 — 18,254 — 
December 31, 2020
Commodity swap contractsRecurring13,384 — 13,384 — 
Mutual fundsRecurring5,331 5,331 — — 
Life-insurance contractsRecurring16,930 — 16,930 — 
Financial Assets and Liabilities Accounted For at Fair Value on Recurring Basis
The Company’s carrying and estimated fair value of debt at September 30, 2021 and December 31, 2020 were as follows (in thousands):
September 30, 2021December 31, 2020
Carrying
Value
Fair ValueCarrying
Value
Fair Value
Level 1Level 2Level 3Level 1Level 2Level 3
Instrument
Senior Notes due 2025$311,868 $— $316,203 $— $311,357 $— $319,140 $— 
New Term Loan Credit Agreement107,262 — 107,262 — 136,622 — 136,280 — 
$419,130 $— $423,465 $— $447,979 $— $455,420 $—