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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)
 3 Months Ended
Jun. 30, 2017
Fair Value Disclosures [Abstract]  
Fair Value of Senior Notes

The fair value of our long-term debt has been estimated based upon our current incremental borrowing rates for similar types of borrowing arrangements. The fair value of our Senior Notes at June 30, 2017 is as follows:

 

 

 

Fair Value

 

 

 

(dollars in thousands)

 

Series 2005A Tranche C

 

$

57,754

 

Series 2007A Tranche C

 

 

24,212

 

Series 2007A Tranche D

 

 

38,887

 

4.5% Senior Unsecured Notes Due 2026

 

 

361,900