STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Apr. 30, 2018

STOCK-BASED COMPENSATION

Schedule of stock option activity under the Company's stock plans

Summaries of stock option activity under the Company’s stock plans for the three months ended April 30, 2018 and 2017, along with corresponding weighted average per share amounts, are presented below (shares in thousands):

	Shares	Exercise Price		Remaining Term (years)	Fair Value
Outstanding, February 1, 2018	889	$	44.83	7.91	$	11.74
Granted	97	$	37.60
Exercised	—	—
Outstanding, April 30, 2018	986	$	44.12	7.90	$	11.44
Exercisable, April 30, 2018	692	$	44.01	7.11	$	11.65

	Shares		Exercise Price		Remaining Term (years)	Fair Value
Outstanding, February 1, 2017	707		$	39.04	7.82	$	10.22
Granted	105		$	64.25
Exercised	(27	)	$	31.53
Outstanding, April 30, 2017	785		$	42.68	7.94	$	11.29
Exercisable, April 30, 2017	485		$	28.17	6.83	$	7.51

Schedule of changes in the number of non-vested options to purchase shares of common stock

The changes in the number of non-vested options to purchase shares of common stock for the three months ended April 30, 2018 and 2017, and the weighted average fair value per share for each number, are presented below (shares in thousands):

	Shares		Fair Value
Non-vested, February 1, 2018	302		$	13.55
Granted	97		$	8.74
Vested	(105	)	$	16.37
Non-vested, April 30, 2018	294		$	10.95

	Shares		Fair Value
Non-vested, February 1, 2017	270		$	14.93
Granted	105		$	16.37
Vested	(75	)	$	9.01
Non-vested, April 30, 2017	300		$	17.38

Summary of assumptions used to estimate fair value of stock options granted

	Three Months Ended April 30,
	2018		2017
Dividend yield	2.7	%	1.1	%
Expected volatility	36.0	%	36.0	%
Risk-free interest rate	2.0	%	1.6	%
Expected life (in years)	3.3		3.4