Fair Value of Financial Instruments and Long Term Debt (Tables)

12 Months Ended

Apr. 30, 2018

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

Schedule of Maturities of Long-term Debt Including Capitalized Lease Obligations

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