Earnings Per Share and Stock Plans (Tables)

12 Months Ended

Mar. 31, 2019

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:	2019		2018		2017
Net income	$	42,577	$	22,065	$	8,984
Denominators:
Weighted-average common stock outstanding— denominator for basic EPS	23,276		22,841		20,591
Effect of dilutive employee stock options, RSU's and performance shares	384		494		297
Adjusted weighted-average common stock outstanding and assumed conversions— denominator for diluted EPS	23,660		23,335		20,888

Schedule of Stock Options Roll Forward

A summary of option transactions during each of the three fiscal years in the period ended March 31, 2019 is as follows:

	Shares		Weighted- average Exercise Price per share		Weighted- average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Outstanding at April 1, 2016	718,801		20.13		6.64	$	465
Granted	398,945		17.00
Exercised	(27,848	)	15.76
Cancelled	(26,004	)	19.06
Outstanding at March 31, 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
Exercisable at March 31, 2019	342,921		$	20.71	5.74	$	4,686

Schedule of Share-based Compensation, Stock Options, Activity

The following table provides certain information with respect to stock options outstanding at March 31, 2019:

	Stock Options Outstanding	Weighted-average Exercise Price		Weighted-average Remaining Contractual Life
Range of Exercise Prices
$10.01 to 20.00	317,938	$	15.56	5.88
$20.01 to 30.00	388,814	25.02		7.33
$30.01 to $40.00	128,025	38.70		9.04
	834,777	$	23.52	7.04

The following table provides certain information with respect to stock options exercisable at March 31, 2019:

Range of Exercise Prices	Stock Options Exercisable	Weighted-average Exercise Price per share
$10.01 to $20.00	172,842	$	15.90
$20.01 to $30.00	168,578	25.47
$30.01 to $40.00	1,501	38.70
	342,921	$	20.71

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 2019, 2018, and 2017:

	Year Ended March 31, 2019		Year Ended March 31, 2018		Year Ended March 31, 2017
Assumptions:
Risk-free interest rate	2.64	%	1.42	%	1.07	%
Dividend yield	0.52	%	0.66	%	0.98	%
Volatility factor	0.352		0.343		0.379
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, 2019 is as follows:

	Shares		Weighted-average Grant Date Fair Value per share
Unvested at April 1, 2016	371,502		$	20.26
Granted	171,407		18.06
Vested	(162,502	)	19.93
Forfeited	(10,151	)	22.81
Unvested at March 31, 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

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, 2019 is as follows:

	Shares		Weighted-average Grant Date Fair Value per share
Unvested at April 1, 2016	101,653		$	26.15
Granted	77,349		15.69
Vested	(25,148	)	26.79
Forfeited	(35,001	)	27.12
Unvested at March 31, 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