Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Assumptions Used to Determine Fair Value of Stock Options

The weighted average fair value of stock options granted in fiscal 2022, fiscal 2021 and fiscal 2020 was based on the following weighted average assumptions:


	2022			2021			2020
Dividend yield		2.10	%		2.94	%		2.42	%
Expected volatility		41.62	%		40.82	%		33.10	%
Risk-free interest rate		1.10	%		0.43	%		1.86	%
Expected life (years)		6.0			6.0			6.0

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range


			Weighted
			Average
	Number of		Remaining		Aggregate
	Stock		Contractual		Intrinsic
	Options		Life		Value
	(in thousands)		(in years)		(in thousands)
May 31, 2022
Outstanding		602		5.15	$	4,987
Exercisable		447		4.09	$	4,065

May 31, 2021
Outstanding		602		5.61	$	18,037
Exercisable		389		4.15	$	12,415

May 31, 2020
Outstanding		1,352		3.21	$	8,846
Exercisable		1,167		2.44	$	8,846

Schedule of Service-Based Restricted Common Shares Granted

The table below sets forth the service-based restricted common shares granted under the Plans during each of fiscal 2022, fiscal 2021 and fiscal 2020. The calculated pre-tax stock-based compensation expense for these restricted common shares will be recognized on a straight-line basis over their respective three-year service periods.


(in thousands, except per share amounts)	2022		2021		2020
Granted		192		307		247
Weighted average grant date fair value, per share	$	57.19	$	38.99	$	37.50
Pre-tax stock-based compensation	$	10,993	$	11,985	$	9,258

Schedule of Assumptions Used to Determine Grant Date Fair Value of Market Based Restricted Common Shares

The following assumptions were used to determine the grant-date fair value and the derived service period for these market-based restricted common shares:


Dividend yield	1.60	%
Expected volatility	44.00	%
Risk-free interest rate	1.70	%

The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:


Dividend yield	2.16	%
Expected volatility	33.60	%
Risk-free interest rate	2.96	%

The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:


Dividend yield	2.69	%
Expected volatility	34.90	%
Risk-free interest rate	1.60	%

On June 25, 2020, we granted an aggregate of 45,000 market-based restricted common shares to three key employees under one of the Plans. Vesting of these restricted common share awards is contingent upon the average closing price of the common shares reaching $65.00 during any 90 consecutive day period during the five-year period following the date of grant and completion of a three-year service vesting period. The grant date fair value of these restricted common shares, as determined by a Monte Carlo simulation model, was $20.87 per share. The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:


Dividend yield	2.71	%
Expected volatility	41.50	%
Risk-free interest rate	0.32	%

Summary of Performance Award Activity

The following table summarizes our performance award activity for the fiscal years ended May 31:


	2022					2021					2020
(in thousands, except per share amounts)	Performance Shares			Weighted Average Grant Date Fair Value		Performance Shares			Weighted Average Grant Date Fair Value		Performance Shares			Weighted Average Grant Date Fair Value
Outstanding, beginning of year		177		$	39.23		158		$	42.45		149		$	45.00
Granted		67			52.22		65			36.93		67			38.91
Vested		(65	)		42.82		(3	)		47.76		(24	)		44.91
Forfeited		(19	)		41.80		(43	)		46.86		(34	)		44.91
Outstanding, end of year		160		$	42.93		177		$	39.23		158		$	42.45

Weighted average remaining contractual life of
outstanding performance shares (in years)		0.90					1.17					1.23

Aggregate intrinsic value of outstanding
performance shares	$	7,445				$	11,730				$	4,721

Aggregate intrinsic value of performance
shares vested during the year	$	3,994				$	100				$	968