STOCK OPTION PLANS (Tables)

12 Months Ended

Mar. 31, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Weighted-Average Assumptions Used to Value Option Awards

The weighted-average assumptions used in the Black-Scholes model to value the option awards in fiscal 2020 and 2019 are as follows:

	2020			2019
Dividend Yield		1.3	%		1.3	%
Expected Volatility		31.4	%		32.7	%
Risk Free Interest Rate		2.31	%		2.85	%
Expected Life	6.0 years			6.0 years

Stock Option Activity

The following table shows stock option activity for the years presented:

	For the Years Ended March 31,
	2020					2019					2018
	Number of Shares			Weighted- Average Exercise Price		Number of Shares			Weighted- Average Exercise Price		Number of Shares			Weighted- Average Exercise Price
Outstanding Options at Beginning of Year		1,042,925		$	76.88		958,136		$	72.52		1,323,379		$	66.07
Granted		187,375		$	91.58		125,734		$	103.53		119,986		$	100.20
Exercised		(62,326	)	$	88.28		(38,748	)	$	54.27		(448,295	)	$	60.27
Cancelled		(7,883	)	$	102.69		(2,197	)	$	100.88		(36,934	)	$	79.97
Outstanding Options at End of Year		1,160,091		$	80.36		1,042,925		$	76.88		958,136		$	72.52
Options Exercisable at End of Year		868,081					761,564					651,218
Weighted-Average Fair Value of Options Granted during the Year				$	27.35				$	33.11				$	33.37

Stock Options Outstanding

The following table summarizes information about stock options outstanding at March 31, 2020:

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number of Shares Outstanding		Weighted Average Remaining Contractual Life		Weighted- Average Exercise Price		Number of Shares Outstanding		Weighted- Average Exercise Price
$23.17 - $29.84		65,912		1.35	$	23.27		65,912	$	23.27
$33.43 - $37.34		57,728		2.21	$	34.03		57,728	$	34.03
$53.22 - $77.67		267,763		5.28	$	72.46		233,949	$	72.37
$79.73 - $106.24		768,688		6.72	$	91.49		510,492	$	89.24
		1,160,091		5.86	$	80.36		868,081	$	76.01

Summary of Activity for Nonvested Restricted Shares

The fair value of restricted stock is estimated based on the stock price at the date of the grant. The following table summarizes the activity for nonvested restricted shares during the fiscal years ended March 31, 2020, 2019, and 2018:

	For the Years Ended March 31,
	2020					2019					2018
	Number of Shares			Weighted Average Grant Date Fair Value		Number of Shares			Weighted Average Grant Date Fair Value		Number of Shares			Weighted Average Grant Date Fair Value
Nonvested Restricted Stock at Beginning of Year		300,115		$	78.94		328,059		$	72.52		371,213		$	66.07
Granted		118,292		$	90.08		121,836		$	105.73		107,964		$	100.20
Vested		(169,347	)	$	92.98		(147,790	)	$	75.94		(119,187	)	$	60.27
Forfeited		(15,940	)	$	58.64		(1,990	)	$	100.88		(31,931	)	$	79.97
Nonvested Restricted Stock at End of Year		233,120		$	75.35		300,115		$	78.94		328,059		$	72.52