Earnings Per Share and Stock Plans (Tables)

12 Months Ended

Mar. 31, 2015

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:	2015		2014		2013
Net income (loss)	$	27,190	$	30,421	$	78,296
Denominators:
Weighted-average common stock outstanding— denominator for basic EPS	19,939		19,655		19,425
Effect of dilutive employee stock options, RSU's and performance shares	285		295		262
Adjusted weighted-average common stock  outstanding and assumed conversions— denominator for diluted EPS	20,224		19,950		19,687

Schedule of Stock Options Roll Forward

A summary of option transactions during each of the three fiscal years in the period ended March 31, 2015 is as follows:

	Shares		Weighted- average Exercise Price		Weighted- average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Outstanding at April 1, 2012
Granted	159,212		13.43
Exercised	(39,858	)	7.39
Cancelled	(25,060	)	19.22
Outstanding at March 31, 2013	736,301		14.46
Granted	136,793		18.95
Exercised	(230,619	)	9.51
Cancelled	(29,969	)	20.00
Outstanding at March 31, 2014	612,506		17.05
Granted	118,060		27.08
Exercised	(87,210	)	18.41
Cancelled	(31,207	)	15.71
Outstanding at March 31, 2015	612,149		18.86		6.42	$	4,990
Exercisable at March 31, 2015	309,435		$	17.05	5.37	$	3,083

Schedule of Share-based Compensation, Stock Options, Activity

The following table provides certain information with respect to stock options outstanding at March 31, 2015:

	Stock Options Outstanding	Weighted-average Exercise Price		Weighted-average Remaining Contractual Life
Range of Exercise Prices
$10.01 to 20.00	458,159	$	16.34	6.1
$20.01 to 30.00	153,990	26.36		7.38
	612,149	$	18.86	6.42

The following table provides certain information with respect to stock options exercisable at March 31, 2015:

Range of Exercise Prices	Stock Options Outstanding	Weighted-average Exercise Price
$10.01 to $20.00	272,168	$	16.08
$20.01 to $30.00	37,267	24.14
	309,435	$	17.05

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 2015, 2014 and 2013:

	Year Ended March 31, 2015		Year Ended March 31, 2014		Year Ended March 31, 2013
Assumptions:
Risk-free interest rate	0.70	%	0.41	%	0.42	%
Dividend yield	0.6	%	—	%	—	%
Volatility factor	0.453		0.533		0.566
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, 2015 is as follows:

	Shares		Weighted-average Grant Date Fair Value
Unvested at April 1, 2012	170,600		17.60
Granted	99,795		14.18
Vested	(58,539	)	17.51
Forfeited	(8,212	)	18.30
Unvested at March 31, 2013	203,644		15.95
Granted	97,095		20.70
Vested	(89,729	)	17.51
Forfeited	(10,416	)	16.37
Unvested at March 31, 2014	200,594		$	17.53
Granted	85,821		26.38
Vested	(91,439	)	19.03
Forfeited	(13,961	)	17.16
Unvested at March 31, 2015	181,015		$	20.99

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, 2015 is as follows:

	Shares		Weighted-average Grant Date Fair Value
Unvested at April 1, 2012	95,118		23.36
Granted	61,106		19.25
Forfeited	(52,360	)	21.90
Unvested at March 31, 2013	103,864		21.47
Granted	46,327		26.79
Unvested at March 31, 2014	150,191		$	23.11
Granted	35,001		27.12
Vested	(37,627	)	$	24.65
Forfeited	(34,118	)	$	24.74
Unvested at March 31, 2015	113,447		$	23.35