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FAIR VALUE MEASUREMENTS (Tables)
3 Months Ended
Mar. 31, 2019
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
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):
 
 
Frequency
 
Asset / (Liability)
 
Quoted Prices in Active Markets for Identical Assets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
March 31, 2019
 

 

 

 

 

Commodity swap contracts
 
Recurring
 
(2,111
)
 

 
(2,111
)
 

Mutual funds
 
Recurring
 
5,925

 
5,925

 

 

Life-insurance contracts
 
Recurring
 
15,702

 

 
15,702

 

December 31, 2018
 

 

 

 

 

Commodity swap contracts
 
Recurring
 
(1,129
)
 

 
(1,129
)
 

Mutual funds
 
Recurring
 
4,140

 
4,140

 

 

Life-insurance contracts
 
Recurring
 
15,333

 

 
15,333

 

Financial Assets and Liabilities Accounted For at Fair Value on Recurring Basis
The Company’s carrying and estimated fair value of debt at March 31, 2019 and December 31, 2018 were as follows (in thousands):
 
March 31, 2019
 
December 31, 2018
 
Carrying
Value
 
Fair Value
 
Carrying
Value
 
Fair Value
 
 
Level 1
 
Level 2
 
Level 3
 
 
Level 1
 
Level 2
 
Level 3
Instrument
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Senior notes due 2025
320,096

 

 
301,438

 

 
319,941

 

 
278,688

 

Term loan credit agreement
184,542

 

 
183,376

 

 
184,957

 

 
181,985

 

 
$
504,638

 
$

 
$
484,814

 
$

 
$
504,898

 
$

 
$
460,673

 
$