Earnings Per Share and Stock Plans (Tables)

12 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table sets forth the computation of basic and diluted earnings per share (share data presented in thousands):

	Year Ended March 31,
Numerator for basic and diluted earnings per share:	2020		2019		2018
Net income	$	59,672	$	42,577	$	22,065
Denominators:
Weighted-average common stock outstanding— denominator for basic EPS	23,619		23,276		22,841
Effect of dilutive employee stock options, RSU's and performance shares	236		384		494
Adjusted weighted-average common stock outstanding and assumed conversions— denominator for diluted EPS	23,855		23,660		23,335

Schedule of Stock Options Roll Forward

A summary of option transactions during each of the three fiscal years in the period ended March 31, 2020 is as follows:

	Shares		Weighted- average Exercise Price per share		Weighted- average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Outstanding at April 1, 2017	1,063,894		19.10		6.98	$	6,477
Granted	227,783		24.33
Exercised	(363,091	)	17.43
Cancelled	(6,136	)	19.83
Outstanding at March 31, 2018	922,450		21.04		7.56	$	13,654
Granted	133,743		38.70
Exercised	(187,907	)	22.09
Cancelled	(33,509	)	23.94
Outstanding at March 31, 2019	834,777		23.52		7.04	$	9,602
Granted	171,515		35.16
Exercised	(296,027	)	20.26
Cancelled	(183,471	)	31.01
Outstanding at March 31, 2020	526,794		26.53		6.93	$	1,518
Exercisable at March 31, 2020	225,337		$	22.67	5.74	$	858

Schedule of Share-based Compensation, Stock Options, Activity

The following table provides certain information with respect to stock options outstanding at March 31, 2020:

	Stock Options Outstanding	Weighted-average Exercise Price		Weighted-average Remaining Contractual Life
Range of Exercise Prices
$10.01 to 20.00	152,666	$	15.56	5.64
$20.01 to 30.00	177,705	$	24.89	6.20
$30.01 to $40.00	196,423	$36.59		8.61
	526,794	$	26.53	6.93

The following table provides certain information with respect to stock options exercisable at March 31, 2020:

Range of Exercise Prices	Stock Options Exercisable	Weighted- average Exercise Price per share
$10.01 to $20.00	89,764	$	15.85
$20.01 to $30.00	115,353	25.19
$30.01 to $40.00	20,220	38.58
	225,337	$	22.67

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The following table provides the weighted-average assumptions used to value stock options granted during fiscal 2020, 2019, and 2018:

	Year Ended March 31, 2020		Year Ended March 31, 2019		Year Ended March 31, 2018
Assumptions:
Risk-free interest rate	2.23	%	2.64	%	1.42	%
Dividend yield	0.68	%	0.52	%	0.66	%
Volatility factor	0.372		0.352		0.343
Expected life	5.5 years		5.5 years		5.5 years

Schedule of Unvested Restricted Stock Units Roll Forward

A summary of the restricted stock unit awards granted under the Company’s LTIP plan as of March 31, 2020 is as follows:

	Shares		Weighted-average Grant Date Fair Value per share
Unvested at April 1, 2017	370,256		$	19.32
Granted	136,935		29.38
Vested	(157,448	)	20.39
Forfeited	(12,954	)	17.99
Unvested at March 31, 2018	336,789		$	22.62
Granted	116,942		37.90
Vested	(211,932	)	22.66
Forfeited	(11,602	)	25.18
Unvested at March 31, 2019	230,197		$	30.22
Granted	151,351		38.40
Vested	(106,792	)	31.09
Forfeited	(62,035	)	31.61
Unvested at March 31, 2020	212,721		$	35.20

Schedule of Nonvested Performance-based Units Activity

A summary of the performance shares transactions during each of the three fiscal years in the period ended March 31, 2020 is as follows:

	Shares		Weighted-average Grant Date Fair Value per share
Unvested at April 1, 2017	118,853		$	18.92
Granted	49,221		25.28
Forfeited	(41,504	)	24.94
Unvested at March 31, 2018	126,570		$	19.42
Granted	34,695		36.43
Forfeited	(7,879	)	22.40
Unvested at March 31, 2019	153,386		$	23.11
Granted	38,585		37.67
Forfeited	(125,251	)	22.67
Unvested at March 31, 2020	66,720		$	32.36