Subordinated Deferrable Debt (Tables)

12 Months Ended

May 31, 2020

Subordinated Debt [Abstract]

Schedule of Subordinated Borrowing

The following table presents subordinated deferrable debt outstanding and the weighted-average interest rates as of

May 31, 2020 and 2019.

	May 31,
	2020					2019
(Dollars in thousands)	Amount			Weighted- Average Interest Rate		Amount			Weighted-Average Interest Rate
4.75% due 2043 with a call date of April 30, 2023	$	400,000		4.75	%	$	400,000		4.75	%
5.25% due 2046 with a call date of April 20, 2026	350,000			5.25		350,000			5.25
5.50% due 2064 with a call date of May 15, 2024	250,000			5.50		250,000			5.50	%
Debt issuance costs	(13,881		)			(13,980		)
Total subordinated deferrable debt	$	986,119		5.11		$	986,020		5.11