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Fair Values of Financial Instruments
9 Months Ended
Sep. 30, 2018
Fair Value Disclosures [Abstract]  
Fair Values of Financial Instruments

15. Fair Values of Financial Instruments

The carrying values of cash and cash equivalents, trade receivables and accounts payable approximate fair value due to the short-term maturity of these items. These fair value estimates are considered Level 1 fair value estimates in the fair value hierarchy of fair value accounting.

The estimated fair value of the Company’s outstanding debt balances as of September 30, 2018 and December 31, 2017 is set forth below (in thousands):

 

September 30, 2018

 

 

December 31, 2017

 

 

Carrying

 

 

Fair

 

 

Carrying

 

 

Fair

 

 

Value

 

 

Value

 

 

Value

 

 

Value

 

Revolving credit facility

$

 

 

$

 

 

$

268,000

 

 

$

268,000

 

3.95% Senior Notes

 

525,000

 

 

 

490,992

 

 

 

 

 

 

 

4.97% Series A Senior Notes

 

300,000

 

 

 

302,338

 

 

 

300,000

 

 

 

303,966

 

4.27% Series B Senior Notes

 

300,000

 

 

 

296,167

 

 

 

300,000

 

 

 

295,616

 

Total debt

$

1,125,000

 

 

$

1,089,497

 

 

$

868,000

 

 

$

867,582

 

 

The carrying value of the balances outstanding under the revolving credit facility approximated its fair value as this instrument has floating interest rates.  The fair value of the 3.95% Senior Notes at September 30, 2018 is based on discounted cash flows associated with the notes using the market rate of interest at September 30, 2018 of 4.82%.  The fair value estimate of the 3.95% Senior Notes is considered a Level 1 fair value estimate in the fair value hierarchy of fair value accounting. The fair values of the Series A Notes and Series B Notes at September 30, 2018 and December 31, 2017 are based on discounted cash flows associated with the respective notes using current market rates of interest at those respective dates.  For the Series A Notes, the current market rates used in measuring this fair value were 4.56% at September 30, 2018 and 4.46% at December 31, 2017.  For the Series B Notes, the current market rates used in measuring this fair value were 4.65% at September 30, 2018 and 4.64% at December 31, 2017. These fair value estimates are based on observable market inputs and are considered Level 2 fair value estimates in the fair value hierarchy of fair value accounting.