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FAIR VALUE MEASUREMENTS (Details) - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Quoted Price in Active Markets For Identical Assets (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Financial assets remeasured $ 0 $ 0
Financial liabilities remeasured 0 0
Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Financial assets remeasured 0 0
Financial liabilities remeasured 0 0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring    
Assets:    
Fair value of other assets 34,398,000 30,512,000
Fair value of total financial assets 36,885,000 32,538,000
Liabilities:    
Fair value of total financial liabilities 34,480,000 30,145,000
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | NQDC Plan liability    
Liabilities:    
Fair value of other current liabilities 2,487,000 2,026,000
Fair value of other long-term liabilities 31,993,000 28,119,000
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | NQDC Plan assets    
Assets:    
Fair value of other current assets 2,487,000 2,026,000
Fair value of other assets 31,993,000 28,119,000
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Restricted Investments    
Assets:    
Fair value of other assets $ 2,405,000 $ 2,393,000