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

12 Months Ended

Apr. 30, 2017

The Company’s long-term debt at carrying amount by issuance is as follows:



	As of April 30,
	2017		2016
Capitalized lease obligations discounted at 3.70% to 6.00% due in various monthly installments through 2048 (Note 7)	$	8,777	$	9,244
5.72% Senior notes due in 14 installments beginning September 30, 2012 and ending March 30, 2020	45,000		60,000
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		—
3.72% Senior notes (Series D) due in 7 installments beginning October 28, 2025 and ending October 28, 2031	50,000		—
	922,777		838,244
Less current maturities	15,421		15,375
	$	907,356	$	822,869

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, 2017 and thereafter:



Years ended April 30,	Capital Leases		Senior Notes		Total
2018	$	421	$	15,000	$	15,421
2019	444		15,000		15,444
2020	468		15,000		15,468
2021	494		569,000		569,494
2022	455		—		455
Thereafter	6,495		300,000		306,495
	$	8,777	$	914,000	$	922,777