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Fair Value of Financial Instruments and Long Term Debt
12 Months Ended
Apr. 30, 2018
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments and Long-Term Debt
FAIR VALUE OF FINANCIAL INSTRUMENTS AND LONG-TERM DEBT
A summary of the fair value of the Company’s financial instruments follows.
Cash and cash equivalents, receivables, and accounts payable The carrying amount approximates fair value due to the short maturity of these instruments or the recent purchase of the instruments at current rates of interest.
Long-term debt The fair value of the Company’s long-term debt and capital lease obligations is estimated based on the current rates offered to the Company for debt of the same or similar issues. The fair value of the Company’s long-term debt and capital lease obligations was approximately $1,277,000 and $941,000, respectively, at April 30, 2018 and 2017.
The carrying amount of the Company’s long-term debt and capital lease obligations by issuance is as follows: 
 
As of April 30,
 
2018
 
2017
Capitalized lease obligations discounted at 3.70% to 6.00% due in various monthly installments through 2048 (Note 7)
$
8,099

 
$
8,777

5.72% Senior notes due in 14 installments beginning September 30, 2012 and ending March 30, 2020
30,000

 
45,000

5.22% Senior notes due August 9, 2020
569,000

 
569,000

3.67% Senior notes (Series A) due in 7 installments beginning June 17, 2022, and ending June 15, 2028
150,000

 
150,000

3.75% Senior notes (Series B) due in 7 installments beginning December 17, 2022 and ending December 18, 2028
50,000

 
50,000

3.65% Senior notes (Series C) due in 7 installments beginning May 2, 2025 and ending May 2, 2031
50,000

 
50,000

3.72% Senior notes (Series D) due in 7 installments beginning October 28, 2025 and ending October 28, 2031
50,000

 
50,000

3.51% Senior notes (Series E) due June 13, 2025
150,000

 

3.77% Senior notes (Series F) due August 22, 2028
250,000

 

 
1,307,099

 
922,777

Less current maturities
15,374

 
15,421

 
$
1,291,725

 
$
907,356



At April 30, 2018, the Company had a bank line of credit arrangement consisting of a Promissory Note, in the principal amount of $150,000. The Note bears interest at a variable rate subject to change from time to time based on changes in an independent index referred to in the Note as the Federal Funds Offered Rate (the “Index”). The interest rate to be applied to the unpaid principal balance of the Note was at a rate of 1.0% over the Index. There was a $39,600 balance owed on the Note at April 30, 2018 and $900 at April 30, 2017. The line of credit is due upon demand.
Interest expense is net of interest income of $1,583, $588, and $157 for the years ended April 30, 2018, 2017, and 2016, respectively. Interest expense is also net of interest capitalized of $2,260, $1,470, and $1,134 during the years ended April 30, 2018, 2017, and 2016, respectively.
The agreements relating to the above long-term debt contain certain operating and financial covenants. At April 30, 2018, the Company was in compliance with all such operating and financial covenants. Listed below are the aggregate maturities of long-term debt, including capitalized lease obligations, for the 5 years commencing May 1, 2018 and thereafter:
 
Years ended April 30,
Capital Leases
 
Senior Notes
 
Total
2019
$
374

 
$
15,000

 
$
15,374

2020
395

 
15,000

 
15,395

2021
416

 
569,000

 
569,416

2022
409

 

 
409

2023
431

 
20,000

 
20,431

Thereafter
6,074

 
680,000

 
686,074

 
$
8,099

 
$
1,299,000

 
$
1,307,099